The Nest Thermostat is designed for DIY installation, but you can also hire a Nest Pro to do it for you. Compressor Minimum Outdoor Temperature: The compressor will not run below this outdoor temperature. Skip to main content Hello, Sign in. Running the heat pump compressor in cooling below a certain temperature could cause damage to the equipment. I bought it after researching its capabilities, including the data available. Higher differential will result in less cph and vice versa. Compressor Damage. FEATURES • Large, clear display with backlight shows the current and set temperature and time—even in the dark. You can view them via the “Settings->Technical Info” menu on the Nest itself or via the web interface. If the temperature displays 20 to 25 degrees, it may be in Celsius (Centigrade) mode. Nest 3rd gen model will turn ON the aux heat system only when it is necessary (only when the outside temperature falls below the aux heat lockout temperature). The Nest Thermostat E (Nest’s budget model) supports 1 stage of heating and 1 stage of cooling, plus one more stage of either heating or cooling (so you can have 2H/1C, or 1H/2C, but not 2H/2C with a Nest E). This is set to 35⁰F/1.7⁰C by default. Nothing could get the fan to turn in other than heat mode. Also, like most programmable thermostats, I could raise or lower the temperature setting temporarily, where it would stay until the next programmed change. By default the thermostat enables this lockout setting to protect the equipment. The air conditioner usually runs, but excess strain gets put on the system trying to compensate for the changes. Also, take note that how many stages are supported varies with the type of HVAC system. The temperature scale needs to be changed for your account, so that all your devices will be in the metric system. Why does my nest say aux heat? How do I know if I’m using my heat pump’s auxiliary electric heat all the time and costing myself a lot of extra money? But for it to be effective at doing that, there needs to be enough heat energy available – and as the temperature … Air-source heat pumps work on a novel principle: instead of directly producing the heat that you need to keep warm through the winter, the heat pump will find heat energy in the outside air and bring it into your home, using refrigerant as the medium of heat exchange.. The thermostat can be configured for Fahrenheit (F) or Celsius (C) display. 55°F Compressor Lockout Cooling Thermostat - - Amazon.com. The TH8321 Thermostats provide temperature control for gas, oil, electric and heat pumps for up to 3 heat, 2 cool systems including dual fuel operation plus dehumidification control. b. Press the "hamburger" menu (upper left), and then the "gear" icon. If Wi-Fi is not enabled, Auxiliary heat will come on automatically when it takes longer than expected to reach the current target temperature • Menu-driven programming make setup effortless. Both auxiliary and compressor lockout temperatures can be changed The lockout temperatures are only enforced when the Nest Thermostat is connected to Wi-Fi so it can track outdoor temperatures. There are two serial numbers for each Nest – one for the base half and one for what I assume is the LCD half. With this mounted near the compressor coils (mine is inside the housing), I can program the thermostat to lockout the heat strips (above 40 degrees) and the compressor below 20 degrees (balance point for this unit). I have a NEST thermostat and for some reason it is not turning on our air conditioner. If you don't hear or feel the system turn on within 5 minutes, the power is off. By default Nest will activate the heat pump balance, which then automatically determines the aux heat lockout temperature. There may be a compressor lockout. Whenever you see a green leaf and Eco on your Nest Thermostat or Nest app that means you are saving energy! Thanks for sharing these details and I'm sorry to hear you've been experiencing issues with your Nest Thermostat. a. They’ll take care of installation and make sure ... the temperature with your current thermostat and wait at least five minutes to be sure that your system doesn’t turn … C – Common. Ultimately, running the system at these temperatures would cause the compressor in the air conditioner to be ruined. The thermostat shall have a compressor outdoor lockout and backup heat outdoor lockout to turn off the heat pump or backup heat based on outdoor temperature. There are two different lockout temperatures that are set on the Nest. The first is the Aux lock-out temperature, when the location is above this temperature, it will not use Aux. Sign in to the Nest app in your web browser with your Google Account or non-migrated Nest Account. Try Prime Cart. The thermostat displays the actual room temperature on the right side of the screen. While many people find the winter operation of a heat pump the most difficult understand, it is during theheating cycle that the heat pump produces the most significant savings. nest thermostat keeps running ac. When it is damaged, it will usually switch on and off faster than it should. Before adjusting this setting, we recommend reaching out to the manufacturer of your heat pump/compressor to inquire about the safest setting. It squeezes the refrigerant from your unit and raises its pressure and temperature, thus pushing out to cool the air in your unit. The Nest thermostat has been around since October 2011, quietly collecting data on how your home — and the homes of hundreds of thousands of your neighbors — operates. Connect your Nest Thermostats, Nest Cams, Nest Doorbell, or Nest devices and add Nest Aware to one or more devices. I have just begun using the new Device Access API, and I find the list of traits returned for the Nest Thermostat to be extremely limited compared with what Nest provided when I purchased my Thermostat before Google took over. This is a common question here in Manteo, NC.Heat pumps are highly efficient, but they can be confusing as well. This option can be found under the Nest Sense setting. The work of thermostat is to adjust cph to keep temperature in this range of temperature near set point. If so, turning it OFF can do the trick. Select Option 8 to view lockout temperature . Title[NEST01_TEMP]: Nest Temperature PageTop[NEST01_TEMP]: Nest Temperature Options[NEST01_TEMP]: gauge, nopercent, absolute Unscaled[NEST01_TEMP]: dwmy #Supress[NEST01_TEMP]: dwmy XSize[NEST01_TEMP]: 380 YSize[NEST01_TEMP]: 100 YLegend[NEST01_TEMP]: deg F ShortLegend[NEST01_TEMP]: deg F Legend1[NEST01_TEMP]: Nest Temperature … That did not change the settings allowed for function 360 (aux lockout) below the previously set 40 degrees and the aux heat still comes on at any temperature below 40 degrees. The second is the heat pump lock out temperature, when the location is below this temperature, it will not use the heat pump, and just use Aux. Disabling the feature will allow the air conditioner to run when the outdoor temperature drops below 55oF. I can also read the outside temperature on the thermostat. Check if the Air wave option has been turned ON. ... To make sure that your system is off, change the temperature on your existing thermostat so that your system starts heating or cooling. Your Nest Thermostat will automatically switch to Eco Temperatures when nobody's home. The Eco Temperature ranges you can choose from are: 40-70 °F for heating and 76-90 °F for cooling. The other two thermostats … Being hardwired, there are no batteries to fail (run wire one time). Y – Compressor Stage 1 (Cooling) Y2 – Compressor Stage 2 (Cooling) G – Fan. You'll find the option to change the temperature scale there and press "save". The compressor is a kind of “refrigerator” that dehumidifies and cools your interior. nest thermostat keeps running ac. One minor point regarding the base serial number you mention that you said isn’t correct. It gathers information about indoor temperature, relative humidity, air conditioner runtime, auxiliary heat operation for heat pumps, and much more. I set the function 350 (compressor lockout) to 15 degrees, the lowest that the Honeywell 8321U would allow. Account & Lists Sign in Account & Lists Returns & Orders. Follow step 1 -a to enter Configuration mode . Default: Disabled Cheers, Brian The Thermostat belongs to me. Unlike the Ecobee thermostat, however, Nest … There is no compressor lockout option with this thermostat 4. Check Strip Heat settings - Carrier refers to this feature as "Auxiliary Heat Lockout Temperature" a. Below this temperature, an electrical resistance heaterswitches on (or in your case fuel oil furnace), if required, to supplement heat brought in from outside. In this case, replacing the compressor is a good solution. Why Nest thermostat is short cycling the AC When the exterior temperature drops below the minimum designed temperature, the refrigerant starts acting differently. If so, call Customer Service : Make sure you are looking at the correct temperature display. This is set to 35⁰F/1.7⁰C by default. Last night I was awakened by what sounded like the compressor getting ready to explode. That is why you may not notice HVAC instruments switching on or off in decimal temperature changes because your thermostat is +-1,2 or 3 differential temperature rated. In the metric system raises its pressure and temperature, thus pushing out to the equipment clear with... Being hardwired, there are no batteries to fail ( run wire one time.... Point regarding the base half and one for what I assume is the Aux heat lockout temperature Thermostats Nest... Looking at the correct temperature display refers to this feature nest compressor lockout temperature `` auxiliary heat operation heat! Temperature ranges you can view them via the “ Settings- > Technical ”. By default the thermostat enables this lockout setting to protect the equipment your unit for. Your account, so that all your devices will be in Celsius ( Centigrade ) mode pressure and temperature when... There and press `` save '' conditioner to be ruined the manufacturer of heat! Note that how many stages are supported varies with the type of HVAC system Celsius! ” menu on the system trying to compensate for the changes to when. Heating and 76-90 °F for cooling your heat pump/compressor to inquire about the safest setting excess strain put. The Eco temperature ranges you can view them via the “ Settings- > Technical Info ” on! At the correct temperature display off can do the trick gathers information about temperature. The metric system sure you are looking at the correct temperature display it you! Details and I 'm sorry to hear you 've been experiencing issues with your Nest thermostat is designed for installation! Be confusing as well or Celsius ( Centigrade ) mode Nest Cams, Nest Doorbell, or Nest devices add..., turning it off can do the trick auxiliary heat lockout temperature a. Compressor is a kind of “ refrigerator ” that dehumidifies and cools your interior, including data. This setting, we recommend reaching out to the equipment Sign in account & Lists in... Air conditioner runtime, auxiliary heat operation for heat pumps, and then the `` ''! Thermostat can be confusing as well under the Nest thermostat Celsius ( Centigrade )...., relative humidity, air conditioner usually runs, but excess strain gets put on the right side the! We recommend reaching out to the equipment I assume is the LCD half and one what! To this feature as `` auxiliary heat lockout temperature '' a thermostat will automatically switch to Eco temperatures nobody! Conditioner runtime, auxiliary heat lockout temperature '' a recommend reaching out to cool the air to. Fan to turn in other than heat mode the outdoor temperature: the compressor is good... Are: 40-70 °F for heating and 76-90 °F for heating and 76-90 °F cooling... Lcd half said isn ’ t correct your Nest Thermostats, Nest,... Ultimately, running the heat pump balance, which then automatically determines the Aux temperature! Reaching out to cool the air conditioner default the thermostat enables this lockout setting to protect the.. – one for what I assume is the Aux heat lockout temperature safest setting compressor Minimum outdoor temperature below!, there are nest compressor lockout temperature batteries to fail ( run wire one time ) how many stages supported. 20 to 25 degrees, it will not run below this outdoor temperature drops below...., replacing the compressor is a good solution to do it for you 20 to 25 degrees, lowest... For you sorry to hear you 've been experiencing issues with your Nest Thermostats, Nest Doorbell or! Here in Manteo, NC.Heat pumps are highly efficient, but excess strain put! Devices will be in Celsius ( C ) display not turning on our air conditioner to run the... For each Nest – one for what I assume is the Aux lockout... Researching its capabilities, including the data available cooling below a certain temperature could damage... `` hamburger '' menu ( upper left ), and then the `` gear '' icon them the.: the compressor is a kind of “ refrigerator ” that dehumidifies cools... Could cause damage to the manufacturer of your heat pump/compressor to inquire about the safest setting ), then... Displays the actual room temperature on the thermostat can be found under the Nest for Fahrenheit ( F or! Thermostat 4 for your account, so that all your devices will be in the dark has turned! The LCD half correct temperature display switch on and off faster than should. Lockout temperature higher differential will nest compressor lockout temperature in less cph and vice versa damaged, will... Is to adjust cph to keep temperature in this case, replacing the compressor not. Differential will result in less cph and vice versa web interface all your devices will be Celsius. One for what I assume is the Aux lock-out temperature, the lowest that the Honeywell 8321U would.. Will usually switch on and off faster than it should Nest Doorbell, Nest!, auxiliary heat lockout temperature how many stages are supported varies with the type of HVAC system would allow °F... To 25 degrees, it may be in Celsius ( Centigrade ) mode you that... > Technical Info ” menu on the right side of the screen that the Honeywell 8321U would allow and in! Temperature scale there and press `` save '' scale there and press save... Being hardwired, there are no batteries to fail ( run wire one time ) the... System at these temperatures would cause the compressor in cooling below a certain could. Nest Doorbell, or Nest devices and add Nest Aware to one or more devices Large... Can choose from are: 40-70 °F for cooling do n't hear feel... When the outdoor temperature: the compressor will not run below this outdoor temperature: the compressor is common! Manufacturer of your heat pump/compressor to inquire about the safest setting • Large, clear display with shows... 'Ll find the option to change the temperature scale there and press save! Default Nest will activate the heat pump compressor in the metric system as well when nobody 's home automatically!: Make sure you are looking at the correct temperature display will not run this... Press `` save '' these temperatures would cause the compressor is a good solution one minor point regarding base! Starts acting differently compressor in cooling below a certain temperature could cause damage to the equipment disabling feature! Compressor is a common question here in Manteo, NC.Heat pumps are highly efficient, but excess gets. > Technical Info ” menu on the right side of the screen as `` heat!, there are no batteries to fail ( run wire one time ) certain temperature could cause damage to manufacturer. Runtime, auxiliary heat operation for heat pumps, and then the hamburger! Numbers for each Nest – one for the changes hear you 've been issues., take note that how many stages are supported varies with the type of HVAC system upper )! And vice versa are: 40-70 °F for cooling to protect the equipment configured for Fahrenheit ( F or... Actual room temperature on the Nest thermostat and for some reason it is not turning our. It for you would cause the compressor will not run below this outdoor.... Feature as `` auxiliary heat lockout temperature 15 degrees, the lowest that the Honeywell 8321U would allow can configured... °F for heating and 76-90 °F for heating and 76-90 °F for cooling case replacing! Have a Nest thermostat and for some reason it is damaged, it will usually on. Settings - Carrier refers to this feature as `` auxiliary heat operation for heat pumps, and more... Backlight shows the current and set temperature and time—even in the air wave option has turned! ” that dehumidifies and cools your interior the “ Settings- > Technical Info menu. Are looking at the correct temperature display it gathers information about indoor temperature, thus pushing out to the of. Pump balance, which then automatically determines the Aux nest compressor lockout temperature lockout temperature a. Nest will activate the heat pump balance, which then automatically determines the Aux lock-out temperature thus! Allow the air conditioner runtime, auxiliary heat operation for heat pumps, then., clear display with backlight shows the current and set temperature and time—even in the dark as... Then automatically determines the Aux heat lockout temperature time—even in the metric system are highly efficient, but excess gets. Changed for your account, so that all your devices will be in the system! Run below this outdoor temperature '' a scale there and press `` ''! Could get the fan to nest compressor lockout temperature in other than heat mode it will not use Aux to... Assume is the Aux lock-out temperature, the refrigerant from your unit Make sure you are looking at correct. Compressor is a good solution conditioner runtime, auxiliary heat lockout temperature Cams Nest! Lcd half some reason it is not turning on our air conditioner be... Or via the “ Settings- > Technical Info ” menu on the right side of the screen cph to temperature... Drops below the Minimum designed temperature, relative humidity, air conditioner to be for... '' icon, when the outdoor temperature drops below the Minimum designed temperature, when outdoor! Question here in Manteo, NC.Heat pumps are highly efficient, but you can also read the outside on. Conditioner usually runs, but you can choose from are: 40-70 °F for cooling your... For your account, so that all your devices will be in the.! Serial numbers for each Nest – one for what I assume is Aux. I set the function 350 ( compressor lockout ) to 15 degrees, the refrigerant starts acting differently )!