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Honeywell Thermostat Question

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Honeywell Thermostat Question

Posted On: September 23, 2023

Honeywell Thermostat Question

Unfamiliar with hvac and would like to ask before doing anything.


It's gettin late so can't call anyone.


Have a standard Honeywell thermostat that typically does not use batteries to be powered.


Noticed it was shut off this evening.


I pulled it off and installed batteries to the unit without placing it back on the housing and the thermostat worked.


We have had a pretty significant amount of rain all day and the hvac has seemed to work normally all day.


Is it ok to place this back on the housing with the batteries in place, or would this cause problems? - since there is normally central wiring that powers it.


Any idea what could be wrong?


Question from user Worried_Comfort_3539 at hvacadvice at reddit.


Answer:


It's unusual for a standard Honeywell thermostat to require batteries if it's wired to a central HVAC system, as they usually draw power from the HVAC system itself. However, if you found that installing batteries allowed the thermostat to work, it's possible that there may be an issue with the power supply from the HVAC system, or there may be a specific setting or configuration that requires batteries.


If your thermostat has been working with batteries, you can leave them in place while reattaching the thermostat to its housing. This should not cause any problems as long as the thermostat is functioning properly with the batteries.


However, it's important to determine why the thermostat is not receiving power from the HVAC system as it should. If this is a recent issue and you have had a significant amount of rain, it's possible that there may be a wiring or electrical issue that needs to be addressed. If you are not familiar with HVAC systems and thermostat installation, it's generally a good idea to consult a professional HVAC technician to diagnose and fix the issue to ensure your system operates safely and efficiently.


Answer from user AutoModerator at hvacadvice at reddit.



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We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.

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Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!

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