Why won't My Honeywell thermostat turn on after changing batteries?
One of the common reasons for the Honeywell thermostat not working after a battery change is that you might have put in the wrong batteries. What is this? The new batteries might not be enough to power your thermostat. Check the inside of the battery compartment to know what voltage your batteries need to be.
How do I get my thermostat to turn on after changing the battery?
The easiest approach is: First, check if you have installed the batteries the right way. If not, take the batteries out and re-insert them in the correct orientation. Next, try to put a different set of batteries- it could be that your new replacement batteries are not strong enough.
Why is my Honeywell thermostat not turning on?
If your Honeywell Thermostat isn't turning on, make sure to first try new batteries. If that doesn't work, check the thermostat for any loose wires and check your circuit breaker. If all else fails, you can perform a hard reset on the Honeywell Thermostat to set it back to factory settings.
How do I fix an unresponsive Honeywell thermostat?
How to Troubleshoot A Faulty Honeywell Thermostat.
Disconnect all the wires connected to the thermostat. ... .
Remove the device from the wall plate..
Remove the batteries and wait for five minutes..
Replace the batteries and reconnect the wires..
Turn on the system and wait for five minutes..