How to Fix a NEST Thermostat Not Cooling

How to Fix a NEST Thermostat Not Cooling

This thermostat provides most of the more expensive features of the Nest Learning model, such as voice and app control, HVAC system alerts, and automatic shutdown when you leave. It automatically sets the schedule and remembers your temperature preferences. This is what distinguishes the learning model.

Despite the Nest Thermostat’s scheduling feature, you must set it up manually. However, sometimes it doesn’t work properly. Many users have recently reported that the NEST thermostat is not cooling. That’s why we’re here. On this journey, you will learn how to fix a NEST thermostat that is not cooling. So let’s get started with the fixes:

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Fix NEST thermostat not cooling 2022

While you may have different reasons why you are facing this annoying issue, there is nothing to worry about as we have mentioned some potential fixes to help you fix your NEST thermostat and not cooling issue. So let’s try them:

Reboot the system

It’s still worth resetting your Nest thermostat, even if it’s unlikely to fix a problem as big as a lack of cooling. It would be better to turn the Nest off completely by turning off the fuse or turning off the power in some other way.

After waiting five minutes, turn the Nest back on. While the Nest is rebooting, you will need to wait a few minutes for it to reconnect to your home systems. Alternatively, you can also use the following method to manually reset your device:

  1. To access the quick view , press the thermostat ring .
  2. Select Settings .
  3. To reset, turn the ring to Reset and press select.

Check if wires are fully inserted

Usually in such situations it is caused by bad wiring. Therefore, it is important that you check all your wiring. So here’s how you do it:

  1. First, turn off the system. Thus, any damage caused by this process will be prevented or repaired.
  2. Then carefully remove the Google Nest thermostat display.
  3. Finally, check all connected wires to make sure they are all connected.
  4. If necessary, wires may need to be pulled out and reinstalled.

Now you can check if the problem with the lack of cooling is resolved. Don’t worry if this doesn’t work; try the following method instead.

Check Compatibility

This is why NEST thermostats don’t work properly, not because of the cooling. This problem often occurs with the NEST thermostat when used with an incompatible device.

The NEST thermostat is designed for 24V operation. However, some models and manufacturers may not be compatible with this system. However, if your device is compatible with a thermostat, wire C may be required.

Check if maintenance is required

Whenever you try to cool or heat, the Nest thermostat screen turns blue but does not light up. However, what if it starts working again after a reboot? So how do you know if your thermostat needs service? Well, if you restart it, eventually it will work. The error appears after a while, but still appears. Thermostat systems require maintenance, so this is an indication that they need service.

Correctly identify your home cooling system

You can easily check your external system by looking outside. The label should indicate whether it is an air conditioner or a heat pump. For more information about the system, find out the brand name and model number and google the device.

It’s also a good idea to turn on the heating in the house to see if the cold starts to come out. If so, you have a heat pump. If you’re having Nest cooling issues, I suspect you have a heat pump system, but I thought it was common.

Reinstall your old thermostat

It’s important to confirm if the Nest is really the cause of your cooling problems once you’ve reached that point. You can do this by reinstalling your old thermostat. Another good idea is to turn off the thermostat fuse before touching any wires.

There may be something wrong with your home’s wiring if you’re installing an old thermostat. Something is wrong with the Nest if, for example, the old thermostat works fine, but the Nest does not.

You may have problems with your cooling system’s wiring if your old thermostat isn’t working either. If you want to fix it, you will probably need a professional electrician.

Circuit breaker tripped

To see if your circuit breaker box has tripped, check the circuit breaker box if you are still having cooling problems. Just find all the switches in the off position and turn them on.

The switch should be turned on, turned off and finally turned on again after it has been identified. It is likely that this will reset the breaker and resolve the problem with the NEST thermostat not cooling.

RC, RH Wiring problem

In older thermostats, the single R wire is sometimes connected to the RC or RH wire using a piece of metal. There is a good chance that you will miss it. However, it’s notable that Nest separates the RC and RH wiring into their own ports.

You must connect one red R wire to the RH Nest port if you only have one red R wire. Check if connecting the red wire to the RC port solves your problem, if that doesn’t work.

Summarizing

So, here’s how to fix the NEST thermostat not cooling issue. We hope the fixes mentioned earlier in this article helped you. Also, comment below and let us know if you have any doubts or questions.

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