If it isnt working properly, you could be in for a long, hot summer.
In this article
Why Honeywell Thermostat Wont Turn on AC?
Check the batteries in your Honeywell thermostat.
If the batteries are low, the screen will be blank.
Replace the batteries with new ones and see if that fixes the problem.
Check to ensure that the thermostat is plugged into an outlet and that the outlet is working.
You may also want to try plugging the thermostat into a different outlet.
If that doesnt solve the problem, then you may need to call a professional for help.
Another common reason why your AC might not be working is because the thermostat itself is set too low.
Again, consult your user manual to confirm youre using the thermostat correctly.
If your Honeywell thermostat wont turn on the AC, it may be because the batteries are low.
To replace the batteries:
-Remove the front cover of the thermostat.
-Locate the battery compartment and remove the old batteries.
-Install new batteries in the compartment and replace the cover.
The most common reason a Honeywell thermostat wont turn on the AC is because theair filteris dirty.
A clogged air filter restricts air flow and prevents the thermostat from reading the temperature correctly.
To fix this problem, simply replace the dirty air filter with a new one.
Be sure to check the air filter monthly and replace it as needed.
If your circuit breaker is flipped, your AC unit will not turn on.
Check to see if the switch next to your furnace is in the On position.
This should reset your AC unit and allow it to turn on.
The answer is simple.
The circuit breaker trips because the Honeywell thermostat is drawing too much power.
This usually happens because the AC unit is trying to turn on but theres something wrong with it.
Maybe the coils are frozen or the compressor isnt working properly.
The next thing you should check is the wiring.
If the wires are loose, it could be causing the problem.
Check to see if the wires are connected properly and tightened.
If theyre not, then tighten them and see if that fixes the problem.
Reset The Thermostat To Factory parameters.
To do this, simply remove the batteries for 30 seconds and then replace them.
This will clear any stored data in the thermostat and should fix the problem.
If not, you may need to consult the Honeywell user manual for further troubleshooting steps.
Try removing the batteries and reinstalling them.
If that doesnt work, you may need to replace the battery door.
when you land replaced the batteries and/or battery door, try turning on the thermostat.
This can be frustrating, especially if the weather is cold and youre trying to keep your home warm.
If this is the case, simply replace the batteries and see if that does the trick.
If this is the case, youll need to find the right power supply and reconnect it.
How do I reset my Honeywell thermostat after a power outage?
First, check to see if your thermostat is still on the correct time and day.
If it is not, simply change it.
To do this, remove the front cover of the thermostat and locate the batteries.
when you’ve got replaced the batteries, reattach the front cover.
Finally, check to verify that all of your thermostats options are correct.
If they are not, you’ve got the option to adjust them as needed.
Can a power surge damage a thermostat?
Yes, a power surge can damage a thermostat.
A power surge is an sudden increase in voltage that can damage electronic equipment.
Thermostats are electronic devices and can be damaged by power surges.
If you have a power surge, you should unplug your thermostat to prevent it from being damaged.
What happens when Honeywell thermostat goes blank?
If your Honeywell thermostat screen goes blank, there are a few possible reasons why.
The most common reason is that the batteries need to be replaced.
If youre not sure what the problem is, you might try resetting the thermostat.
If that doesnt work, you may need to contact a professional for assistance.
Why is my thermostat not turning on the AC?
There are a few reasons this could be happening.
Also, ensure that the fan switch is in the on position.
Trying to fix the issue yourself could result in further damage.
How to turn on AC with old Honeywell thermostat.
Some models also have a switch that must be in the On position for the AC to work.
Again, consult your thermostats manual if youre unsure.
Finally, set the temperature to your desired level and voila!
You should now have cool, refreshing air flowing through your home.
Conclusion
If your Honeywell thermostat wont turn on your AC, there are a few potential causes.
First, check to see if the batteries are low.
If they are, replace them and loop back and try.
If that doesnt work, you may need to reset the thermostat.
To do this, simply turn it off and then back on again.
If that doesnt work, you may need to call a professional for help.
We hope this article has helped you troubleshoot your Honeywell thermostat issue.
If you have any other questions or concerns, c’mon feel free to reach out to us.
Were always happy to help!
