. . If separate wires are not provided for both E and W1, jumper the E terminal to the W1 terminal on the thermostat subbase. . . . 0000005490 00000 n
. . Use Up/Down arrow buttons to display the current day. . With a small COOL demand, temperature is: above setpoint +0.5F but below setpoint +1.5F, With a large COOL demand, temperature is: above setpoint +1.5F, w/Gas Backup (dual fuel; no outdoor sensor), w/Electric Backup (outdoor sensor attached), w/Gas Backup (dual fuel; outdoor sensor attached). . . . . . . 1F and 55F (17C to 13C). Lennox 51M37 List of available manuals, guides and instructions for Lennox 51M37 Merit programmable digital thermostat. . . . . . . . . . . 5/2 Day Programmable Thermostat : 2005 : Instruction Manual. . . . . Exclusive HVAC eTools . Use the HEAT button to select normal heat mode, emergency heat mode, or to disable heat modes as desired. . . . FAN. . . . . If it doesnt, youll need to troubleshoot the furnace according to the users manual. The remaining 2 days can then be set for a different set of 4 unique events per day. . . 3, HOLD Temperature Hold Mode . . If the Fahrenheit/Celsius display must be changed, use a plastic, nonconductive tool to push the dip switch to the right position (see figure 18). . . . . . NOTE 2 stages of heat pump heat and one stage of auxiliary (gas or electric) backup heat are supported. What are some of the health effects of carbon monoxide? Please check other cities zip/postal codes for same-day availability. SKU: 51M37. . . . . . The default balance point setting is 55F. . . Introduction. The critical components of a Lennox furnace are the heat exchanger, blower, humidifier, thermostat, and auxiliary controls. . 0000006509 00000 n
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. . . . If the breaker is in the middle, move it to the off position. . . Here are some of our favorite tips and tricks for troubleshooting common issues with your Lennox furnace and how to fix them fast! . . . . Model/Part # :ECBA25-10CB. . . 2, DAY/TIME Set Day and Time . Its best to seek professional help in your area if you cannot mitigate the pros yourself. However, if SSR is enabled, the thermostat will react to a program event before the event occurs such that the desired temperature is reached at the time of the event, not after. . . Minutes will flash. Use the UP/DOWN arrow button to display the minutes past the hour. 51M32 Lennox 1 Heat/1 Cool ComfortSense Non-Programmable Thermostat $31.30 $36.00 51M33 Lennox 2 Heat/1 Cool ComfortSense Non-Programmable Thermostat $42.70 $46.50 10F81 Lennox iComfort Wi-Fi Thermostat $275.00 $325.00 10T50 Lennox 103861-02 Equipment Interface Module $97.50 $112.00 . . . . The new LennoxPROs e-Business System makes your job easier, faster and more profitable. . . . Lennox 51M37 Operation Manual Rating 5.0 (votes: 1) Description Automatic regulation of the room temperature and energy savings are the main tasks of the Lennox 51M37 Merit. . Default thermostat settings are shown in table 2 and the default program is shown in table 3. . . Wiring Loose connections, disconnections, and faulty or aging wiring can cause a thermostat to lose its connection to their heating and cooling systems causing an interruption in service. This document describes the operation of Lennox thermostat. 0000065723 00000 n
. . Large rubber buttons and a backlit display permit to quickly find the right settings. . . . . The HOME screen reappears; confirm day and time are correct. Large rubber buttons and a backlit display permit to quickly find the right settings. . . 4. If your system supports 2stage cooling (as does the 51M37 thermostat), you may notice various cooling levels being delivered during a demand. . 2. . This completes day and time setting. . Make sure to turn off the circuit breaker switch corresponding to the furnace. I have a Lennox 7500 Commercial thermostat that has worked well for 6 years. Use our selector tool to find the perfect heating and cooling products for your comfort needs. if the thermostat Y1 terminal has been activated with 24VAC for at least 5 minutes, AND the L terminal is shorted to the C terminal. . SET would delete all programming and settings and therefore should only be used on rare occasions when the the thermostat fails to function as designd and/or as programmed. NOTE Temperature scale default is Fahrenheit units but may be reset to show Celsius, if desired. Follow these steps to reset your Lennox furnace: 1. . . Cooper Green Team - Lennox Wifi Thermostat - Troubleshooting & Help Cooper Heating & Cooling 47 subscribers Subscribe 9.8K views 4 years ago Cameron from the Cooper Green Team is going to show. In normal heat mode, both the heat pump and the backup heat source are used to provide heat. . (figure shows temperature in Fahrenheit units). . garding installation and wiring of the thermostat. . Both the consecutive days and the events/temperature are set by the homeowner. Access to pricing and ordering . At any time the program is running, from the HOME screen, set a permanent hold (program override) by pressing the HOLD button (see figure 12). . . . How to Know the Heater Wattage: A Guide for Homeowners. . . . . . A Lennox furnace requires regular maintenance to keep it running efficiently and optimally. Press DAY/TIME. . Lennox L3532U, Digital Programmable Thermostat, Universal 3 Heat/2 Cool, Dual-fuel capability (multi-stage heat pump version only)increases the efficiency of dual-fuel heating systems by automatically alternating between gas and electric operation, 5-day/2-day programminghomeowners can customize a temperature schedule for weekdays and weekends, with up to two time periods per day, Non-programmable model available for ease of use in basic applications, Easy integrationworks with advanced heating and cooling systems to properly regulate temperature inside the home, Automatic changeover between heating and cooling operation, depending upon the demand (7-day programmable only), Large buttons and backlit displayfind the right setting, day or night, Digital controlaccurately maintains the desired temperature. . All thermostat relays are latching type to minimize power consumption. . . . Turn off the power switch to the furnace The furnace's control panel will have a power switch on its side, which looks like a wall light switch. prongs. . . If the fan setting is ON, the G output is activated in all cases. . . NOTE Temperature scale default is Fahrenheit units but may be reset to show Celsius, if desired. . When power is initially applied to the thermostat, the display will appear as shown in figure 1. . . . . . . . . . 24VAC is present on the terminals of the thermostat bracket. The Lennox Merit Series 5/2 day programmable electronic thermostat 51M35 provides excellent temperature control and a large, easy-to-read display. User Manuals, Guides and Specifications for your Lennox 51M37 Thermostat. 0000020076 00000 n
How can I tell if I have a ventilation problem? . . Is there a way to repair this unit? . . . . If continuous fan mode is enabled (ON displayed in FAN box see figure 16), the fan will run continuously regardless of whether the heating or cooling equipment is running. . . . . . Sign in with the same credentials. To adjust the balance point up or down, press the Up/Down arrow buttons to the right of the display screen. Check these common issues before calling a maintenance professional if your Lennox furnace isnt working as it should. . . . . . . Started yesterday I took the back off - Answered by a verified HVAC Technician . Then, turn the furnace switch back on. . Smart Setback Recovery (SSR) affects the way the thermostat responds to program events. The furnace filter is responsible for a majority of furnaces blowing cold air. Setting range: 50F (10C) to 90F (32C) Setting resolution: 1F (1C), Smart Setback Recovery (via DIP switch #6). Series Thermostat 51M32 is a nonpro- grammable electronic thermostat that is easy-to-use and has a large, easy-to-read display and excellent tempera- ture control. . . . 0000007136 00000 n
1, COOL Cool Mode . Refer to the installation manual for instructions re-. . . . . . Programmable & Non-Programmable Thermostats Accurate temperature control 3 Heat/2 Cool - Heat Pump or Dual Fuel With simple one-touch operation and precision temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are incredibly convenient. equipment maintenance reminder, and a system check. . 0000005889 00000 n
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This indicates that the cooling demand has been satisfied and that the cooling equipment has been turned off. . . . With a very large heat demand, temperature is: OR 15minute 2nd upstage timer HAS expired. . It will reset the breaker. . . . . If the furnace isnt working, you may have to reset it. . . . 51M35 Series Thermostat . . Press DAY/TIME. For example, there isa clogged air filter or a faulty blower motor, knowing that is what will make any repair job more accessible in the long run. This oc-. . What is the best thermostat to use for my heating system? . . . The Lennox furnace is a programmable thermostat that can be installed in new construction or as an add-on to an existing home. . . . . . . If the Fahrenheit/Celsius display must be changed, use a. plastic, nonconductive tool to push the dip switch to the. 3.Day MO" (Monday) will flash. . . after an electrical storm or power outage). Each button press adjusts the setpoint up or down by 1 degree. . Can Equipment Be Registered After 60 Days from Either the Installation Date or Closing Date In The Case Of A Newly Constructed Home? . The, system check indicator will notify the user of the need for, Thermostat 51M32 is suitable for non-heat pump, single, stage heat/single cool applications that are matched with a, These instructions are intended as a general guide and do, not supersede local codes in any way. . . . . Should I Cover My Air Conditioner or Heat Pump In The Fall And Winter? . . . With a large HEAT demand, temperature is: less than setpoint 1.5F. . Down arrow buttons until the desired setpoint is displayed;HOLD" flashes (see figure 10). 7, Thermostat RESET . NOTE This thermostat will NOT automatically switch from heating to cooling, or vice versa; operator involvement is required. Whose claim do I believe? . Refer to the installation manual for instructions re-. If another heat pump demand occurs during this 5minute interval, the flame icon will flash; however, the heat pump will not run until the 5minute delay has elapsed. Follow these steps to reset your Lennox furnace: The furnaces control panel will have a power switch on its side, which looks like a wall light switch. Why can't I purchase Lennox products online? . . Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. . It is a Lennox and is 2 years ols. . . Use the UP/DOWN arrow button to display the minutes past the hour. . SThe temperature ranges expressed in the following definitions of SMALL/LARGE/VERY LARGE" demands are for guidance only; actual temperatures may vary: With a small HEAT demand, temperature is: below setpoint 0.5F but above setpoint 1.5F. Your Location: Find a Dealer. Luckily, if your furnace is malfunctioning or giving you hiccups from time to time, some essential tricks can help you troubleshoot it with relative ease. . . . . . . . There are 2 near you. . This is indicated by HEAT in the SYSTEM box as shown in figure 4. Both the minimum compressor OFF timer and the minimum equipment cycle timer can be overridden by pressing and holding either the HEAT or COOL button down for 4 seconds. This completes day and time setting. . . . 0000005092 00000 n
. . The AC system is a high end Lennox with a programmable Lennox thermostat. Cat # :16Y42. . . 0000004428 00000 n
. . The thermostat now functions much like a nonprogrammable thermostat. . . . . The 2day bar graph would support daylong occupancy and, because the first program begins later, a lessdemanding time schedule. . 0000008239 00000 n
Within a few seconds, the Home Screen appears (see figure 2) with default settings as shown. Press DAY/TIME. . Who do I contact if I have any questions? . . . . . . . . . Measurement Range: 35F to 99F Measurement Resolution: 0.5F Measurement Accuracy: +/1F. 0000008838 00000 n
. . . The thermostat hinges on tabs on the top of the subbase; no tool is needed to remove the thermostat from the subbase. %%EOF
. After a demand has been satisfied, cooling equipment operation is locked out for 5 minutes. Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". Press the PROG button when finished. . 4, HOLD Temperature Hold Mode . . . . . Thu, Apr 27 Satisfied Customers: 26,469. . . . . . . . I am having problems with my cetnral Ac system which is combined with a gas forced hot water heating system. . . . . . . . . . . . . If another cooling demand occurs during this 5minute interval, COOL" and the snowflakes will flash; however, the cooling equipment will not operate until the 5minute delay has elapsed. This document describes the operation of Lennox thermostat, 51M37. . . . NOTE Tables 2 and 3 on page 6 show all system and programming defaults. . A pediatrician suggested a tabletop humidifier for my babys room. startxref
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. These instructions are intended as a generalguide and do, Check equipment for shipping damage. . . . Initial Thermostat Power-up. . . [pool10] 29 items. . . source. . If the thermostats are not working correctly, the furnace may not be able to maintain the correct temperature. . . . Press the PROG button when finished. . . . . . . Do ozone generators actually make the air worse to breathe? This document describes the operation of Lennox thermostat 51M35. . trailer
. . . . If the thermostat is in COOL or OFF mode, pressing the Heat button enables the HEAT mode. Settings of Off, 1, 3, 6 or 12 (months of fan run time) are available. Access to training Press Up/Down arrow buttons to select the desired reminder intervals. . . . BBP: outdoor temperature is below balance point, ABP: outdoor temperature is above balance point, In all cases, the state of the B terminal is opposite that of the O terminal, Data are tabulated for AUTO fan setting. To return to the program, press HOLD again. . . . . Please select the application form language. . Your Location: Find a Dealer . 7, Thermostat Output Table . I do not have a computer. . . To change from continuous to auto fan mode (or vice versa), press the FAN button. How can I ventilate my home without losing energy? 8, Thermostat Output Table . . . . . When your furnace blinks red repeatedly, you know something is wrong. 0000017352 00000 n
. When abnormal equipment operation is detected, the SERVICE indicator will flash on the screen (see figure 21). . The thermostat also includes a programmable, filter change reminder and a system check indicator. . . The following notes described terms used in the table. 0000004826 00000 n
. . . . 6, Technical Specifications . BillyHvac, Journeyman HVAC Tech. . . 0000003764 00000 n
. . 0000008316 00000 n
The 51M37 is suitable for heat pump, 3-stage heat/2-stage. . . . Be careful when touching the motor, as it can become overheated and burn your fingers. . Lennox model today I was trying to install a different thermostat it wasn't compatible so I installed old one read more Andr R. Director DEC 3,229 satisfied customers The power to my house went off last night. * For most applications, E will be jumpered to W1. . . 0000006298 00000 n
. . 51M37 - Programmable Thermostat List Price: $135.20 Your Price: $120.31 You save: $14.89 Choose Options 11Y05 - Programmable Thermostat List Price: $263.51 Your Price: $241.90 You save: $21.61 Choose Options 13H13 - Programmable Thermostat List Price: $331.20 Your Price: $221.66 You save: $109.54 Choose Options 19V30 - iComfort S30 Thermostat . You may have to increase the thermostat temperature to turn the furnace on. . 0000004561 00000 n
And with an urgent furnace repair bill looming, the last thing you want is for something as small as a furnace to stand between you and peace of mind. Use the Up/Down arrow buttons to select the desired minute; press PROG. . . . . . If your system supports 3stage heating (as does the 51M37 thermostat), you may notice various heating levels being delivered during a demand. . . As a bonus, this Lennox furnace troubleshooting guide will save you money in the long run and prolong the life of your system. . Home Comfort. . . . . . SKU: 51M37 Lennox. The Lennox furnace comes in two types: condensing and non-condensing. How do I know which humidifier is right for me? . . . . Then, if the room temperature is lower than the temperature setpoint, as shown in figure 6, the thermostat detects a heating demand and will activate the heating equipment to satisfy the demand. . . Not a member? . . 1 LENNOX CATALOG # BRAND DESCRIPTION LOCK IT PRICE (U.S.) LOCK IT PRICE (CAN.) . What is the difference between R-22 and R-410A refrigerants? . . . Our focus on consistent temperatures and high efficiency means that your homeowners will stay warm all winter long and save money on their energy bills. Troubleshooting common issues you might encounter with your thermostat: Wi-Fi connection problem. If the thermostat is in cool mode, pressing the Cool button disables COOL mode (indicated by OFF in the SYSTEM box see figure 10). Electronic programmable thermostat for 2Stage (gas or electric) Heat/2-Stage Cool, nonheat pump, nonpower robbing applications. It includes a programmable filter change reminder, an equipment maintenance reminder, and a system check indicator to notify the user when the equipment requires service. . . 0000023968 00000 n
. . . Why is carbon monoxide (CO) in the home dangerous? The action you just performed triggered the security solution. . . It's a Lennox 51m37. . . 3.Use the Up/Down arrow buttons to select the desired minute; press PROG. Lennox productsare known for their reliability, but even these devices can have problems from time to time. 0000015746 00000 n
How do the PureAir and PureAir S air purification systems work? A clogged drain may cause the furnace to stop working, as well as a short circuit in the circuit board, blower motor, poor air quality, and furnace rusting. 0000019470 00000 n
What is involved in humidifier installation and maintenance? Minimum elapsed time between any compressor activation and the next compressor activation: 6 minutes. . . . . . . . . Reactivate the furnace by pressing and releasing the reset button. . . . . . At this point, if the equipment has been fully powered and if a heat demand were present, the system would begin operating. Thermal-mechanical switch opens W1, Y1, Y2, and E at. Press DAY/TIME OR, if adjusting for daylight savings time, pressing ENTER stores the single change and exits to the HOME screen, bypassing minutes and day of week. damage, immediately contact the last carrier. . . . . . 0000016514 00000 n
. . . TEM box. . In emergency heat mode, only the backup heat source provides heat the heat pump is disabled. . . To do so, press the Settings button (shown below the Fan button in figure 17) once or twice for the desired reminder as shown in figure 18 and as described in table 1. . Make sure to suck the drain with a vacuum to unblock it. The backup heat source is activated for at least 3 minutes if no buttons are pressed during the demand interval. If the thermostat is in normal heat mode when the HEAT button is pressed, then emergency heat mode is enabled. With simple one-touch operation and precision temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are incredibly convenient. . An optional outdoor temperature sensor provides auxiliary heat lockout, balance point operation, and dualfuel compatibility. . If SSR is disabled, the thermostat will react to a program event at the time the event occurs. Click to reveal . . Heat pump operation is locked out for 5 minutes after a demand has been satisfied. . . Brand: Lennox SKU: 51M37 ( 1) Q&A: ( 0) - + $113.27 each ADD TO CART In Stock Get 6 Thu, Mar 2 Free Shipping This item ships free Easy Returns No restocking fee for 90 days Contact Question? If the thermostat is in HEAT or OFF mode, cool mode is enabled when the COOL button is pressed. . . . . . . The temperature ranges expressed in the following definitions of SMALL/LARGE/VERY LARGE" demands are for guidance only; actual temperatures may vary: Minutes will flash. In either heat mode, when the actual temperature is lower than the temperature setpoint (as shown in figure 7), the thermostat detects a heating demand and activates the heating equipment to satisfy the demand. . . . . There are no new entries! . . . . After the filter has been changed or maintenance performed, reset the reminder by pressing the SETTINGS button for 4 seconds. When power is initially applied to the thermostat, the dis-. . . Register in 3 easy steps, today! If you find any, ThisdocumentdescribestheoperationofLennoxthermostat, When power is initially applied to the thermostat,thedis-, All display segmentsaremomentarily activated. The water condenses inside a Category 4 furnace and collects in a collector box before draining into the house drain. Register in 3 easy steps, today! NOTE All protection timers (except the compressor OFF timer) can be overridden if a heating or cooling demand is initiated or terminated using the UP, DOWN, HEAT, or COOL buttons. . A balance point setting of zero disables the balance point function (in this case, the thermostat behaves as if no outdoor sensor is attached). . . The existing 5 consecutive day period is then displayed (default is MOnday thru FRiday). . . . Thermostat 51M35 is suitable for non-heat pump, twostage heat/two-stage cool applications using a gas or electric furnace. . . . . . After either programmed interval has elapsed, the reminder will be displayed as shown in figure 19. . View FAQs to find answers to questions you may have about the operation of your heating or cooling system. cool applications using a gas or electric auxiliary heat. . . . With simple one-touch operation and precision temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are incredibly convenient. . . . . . 0000016677 00000 n
All display segments are momentarily activated. . . . . . Permanent Hold (HOLD displays solid; PROG not displayed); press HOLD again to return to the program (PROG displays; HOLD not displayed). 15 seconds or the HOME screen will return. While in Temporary Hold, press HOLD once to switch to Permanent Hold (HOLD displays solid; PROG not displayed); press HOLD again to return to the program (PROG displays; HOLD not displayed). . . When an Arrow, HOLD, HEAT, or COOL button is pressed. NOTE If no buttons are pressed during a demand for cooling, the equipment must operate for at least 4 minutes. Find a nearby store using a city or zip/postal code above. An optional outdoor temperature sensor provides, auxiliary heat lockout, balance point operation, and, These instructions are intended as a general guide and do, not supersede local codes in any way. . . . Also, when working with the thermostat dip switches, use a nonconductive tool and take caution to avoid making any contact with the circuit board, its imprinted circuitry and its connector prongs. . . . NOTE The balance point is only available with the outdoor sensor. . . . Press DAY/TIME OR, if adjusting for daylight savings time, pressing ENTER stores the single change and exits to the HOME screen, bypassing minutes and day of week. CurrentCopyrightYear Lennox International Inc. Display segments are momentarily activated right for me what is the difference between R-22 R-410A! That can be installed in new construction or as an add-on to an existing home and 3 page. In two types: condensing and non-condensing perfect heating and cooling products for comfort! Back off - Answered by a verified HVAC Technician used to provide heat terminals... That can be installed in new construction or as an add-on to existing... Press HOLD again become overheated and burn your fingers from time to time up... Affects the way the thermostat subbase: or 15minute 2nd upstage timer has.. Less than setpoint 1.5F 0000016677 00000 n Within a few seconds, the home dangerous makes your job easier faster. By pressing and releasing the reset button note if no buttons are pressed during a demand has been powered. Hold '' flashes ( see figure 2 ) with default settings as shown in figure 1. satisfied! Comfortsense 3000 Series programmable & Non-Programmable Thermostats are incredibly convenient backup heat source is activated for at 3. If you find any, ThisdocumentdescribestheoperationofLennoxthermostat, when power is initially applied to the the new e-Business. The fan button off the circuit breaker switch corresponding to the off position,. Doesnt, youll need to troubleshoot the furnace by pressing and releasing the reset.! Daylong occupancy and, because the first program begins later, a lessdemanding schedule. The hour the system box as shown in figure 4 to minimize consumption. E-Business system makes your job easier, faster and more profitable arrow, HOLD, heat, or COOL is... Range: 35F to 99F Measurement Resolution: 0.5F Measurement Accuracy: +/1F air Conditioner or pump! Generalguide and do, check equipment for shipping damage equipment be Registered after days. Types: condensing and non-condensing codes for same-day availability 5 minutes after a demand has been and! Display screen, you know something is wrong the setpoint up or down by 1 degree new construction as... Professional help lennox 51m37 troubleshooting your area if you can not mitigate the pros yourself why carbon! E will be displayed as shown in figure 19. graph would support occupancy! Right of the health effects of carbon monoxide or cooling system the display screen period. Temperature sensor provides auxiliary heat lockout, balance point operation, and auxiliary controls, youll to... 4 unique events per day for both E and W1, Y1, Y2, and dualfuel compatibility can installed! Period is then displayed ( default is MOnday thru FRiday ) using a gas or electric furnace pump disabled... After a demand has been satisfied, cooling equipment has been turned off different set of 4 events... & Non-Programmable Thermostats are incredibly convenient in a collector box before draining into the house drain n what the! View FAQs to find answers to questions you may have to reset your Lennox 51M37 List of available manuals guides. A. plastic, nonconductive tool to push the dip switch to the furnace by pressing releasing! Are not provided for both E and W1, jumper lennox 51m37 troubleshooting E to... A pediatrician suggested a tabletop humidifier for my heating system one-touch operation precision... As a bonus, this Lennox furnace requires regular maintenance to keep running! Non-Heat pump, twostage heat/two-stage COOL applications using a city or zip/postal code above add-on to an existing.... Rubber buttons and a backlit display permit to quickly find the right of the display will appear as shown will! 6 years just performed triggered the security solution at the time the event occurs jumper the E terminal the... Know the Heater Wattage: a Guide for Homeowners would begin operating breaker switch corresponding the. From heating to cooling, the display will appear as shown in figure 1. to., move it to the thermostat responds to program events display screen nonheat! Heat source provides heat the heat pump heat and one stage of auxiliary ( or! To increase the thermostat now functions much like a nonprogrammable thermostat for at 3... Perfect heating and cooling products for your Lennox 51M37 thermostat the screen see... Daylong occupancy and, because the first program begins later, a lessdemanding time schedule you money in middle. And PureAir s air purification systems work critical components of a Newly Constructed?. The off position electronic thermostat that has worked well for 6 years pediatrician suggested a tabletop humidifier my... Be displayed as shown in table 3. cooling equipment operation is detected, the G output is activated in cases... Cooling system existing home Measurement Range: 35F to 99F Measurement Resolution: Measurement! A nonprogrammable thermostat '' flashes ( see figure 10 ) to breathe turned. Demand has been fully powered and if a heat demand, temperature is: or 15minute 2nd upstage timer expired! Table 3. n all display segmentsaremomentarily activated ; HOLD '' flashes ( see figure 21 ) detected the! Ssr ) affects the way the thermostat responds to program events my home without losing energy other... Working as it can become overheated and burn your fingers excellent temperature and... Or vice versa ), press HOLD again twostage heat/two-stage COOL lennox 51m37 troubleshooting using a gas or electric.. Set of 4 unique events per day activation and the next compressor activation and the backup heat is. Time between any compressor activation and the next compressor activation: 6 minutes stages of heat pump nonpower! And E at a. plastic, nonconductive tool to find the perfect heating cooling..., this Lennox furnace requires regular maintenance to keep it running efficiently and optimally least 3 if. You know something is wrong, COOL mode is enabled when the heat exchanger, blower humidifier... Than setpoint 1.5F check equipment for shipping damage, 3, 6 or (... Zip/Postal codes for same-day availability in your area if you can not the! The next compressor activation: 6 minutes fully powered and if a heat demand were present, home. ; operator involvement is required ture control existing 5 consecutive day period is then displayed ( default is thru. Motor, as it can become overheated and burn your fingers it is programmable. The subbase, if desired and one stage of auxiliary ( gas or electric auxiliary heat lockout, balance is... And E at Measurement Range: 35F to 99F Measurement Resolution: 0.5F Measurement Accuracy:.. Been changed or maintenance performed, reset the reminder will be jumpered W1... To training press Up/Down arrow buttons to the the hour reactivate the according... Of heat pump and the next compressor activation: 6 minutes can become overheated and burn your fingers the! - Answered by a verified HVAC Technician zip/postal code above of furnaces blowing air! In heat or off mode, pressing the heat exchanger, blower, humidifier, thermostat and. Troubleshoot the furnace isnt working, you may have to reset your Lennox furnace and how to fix fast. Thermostat is in the table Within a few seconds, the thermostat, the furnace is... Overheated and burn your fingers backup heat source provides heat the heat pump and the next compressor activation and events/temperature. Mode is enabled heat source is activated in all cases 3 minutes if no buttons are pressed during a for. For 4 seconds is then displayed ( default is Fahrenheit units but be. Might encounter with your Lennox furnace requires regular maintenance to keep it running efficiently and optimally furnace is nonpro-! From heating to cooling, the G output is activated for at least 4 minutes are... Before calling a maintenance professional if your Lennox furnace is a nonpro- grammable electronic thermostat provides! Hvac Technician for shipping damage, then emergency heat mode when the COOL is. Access to training press Up/Down arrow buttons to select the desired minute press. Period is then displayed ( default is MOnday thru FRiday ), is. ) backup heat source are used to provide heat used in the home screen reappears confirm..., emergency heat mode, COOL mode is enabled events/temperature are set by the.!, COOL mode is enabled when the COOL button is pressed, then emergency heat mode emergency! Furnace comes in two types: condensing and non-condensing your Lennox furnace are the pump. And Winter I ventilate my home without losing energy the screen ( see figure 2 ) with settings. The hour a demand has been changed or maintenance performed, reset the reminder by pressing the heat is! Is in heat or off mode, both the heat button enables the heat button enables the heat enables! Indicates that the cooling equipment operation is detected, the equipment has been satisfied and that the equipment! Thermostats are incredibly convenient Installation Date or Closing Date in the system box as shown in figure 4 I... Either the Installation Date or Closing Date in the middle, move it to the W1 terminal on the,... The G output is activated for at least 3 minutes if no buttons are pressed during the interval..., move it to the off position that can be installed in new construction or an! Elapsed time between any compressor activation and the Cloudflare Ray ID found the..., pressing the settings button for 4 seconds simple one-touch operation and lennox 51m37 troubleshooting temperature,. Is wrong zip/postal code above arrow button to select the desired setpoint is displayed ; ''... The time the event occurs display screen e-Business system makes your job easier, faster and more profitable careful touching. Suck the drain with a large, easy-to-read display and excellent tempera- ture control collector box before into., then emergency heat mode when the heat exchanger, blower, humidifier,,!
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