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Problem for Honeywell Power Humidifier: Furnace Humidifier/ Humidifier
Thermostat - Honeywell Chronotherm III
Yes, I have a problem on my Honeywell Chronotherm III t-stat
- showing "-AC" on top right hand corner, where used to be current temp. The t-stat is used to control both AC and heater, and the problem happens on both "heat" and "cool" setting. I
have tried to switch the front part from another working t-stat with
same model, it has the same problem. But If it's not a problem on
t-stat, how can both AC and heater have problem at same time? Can
anyone help? Thanks.
Same Problem
May 06, 2009
- My system is turned off at the thermostat but as I walked by I noticed that next to the date and time is a long dash (-) followed by AC. If I turn the system on cool, the fan motor never starts up and the dash and AC still stay there. It is going to get hot here soon. Please say this is a thermostat problem!MaryJo Washington DC- mjwilson4eve
Jan 05, 2009
- i have a honeywell chronotherm III which is no longer working.i get a HOLD -AC indicator where the temperature (i.e. 70 and heat would normally appear). there is no air (hot or cold) coming out. we've changed the battery as well. not sure what's wrong - but our others work fine.
- swatirwarren
Solution #1
posted on Mar 15, 2009
What you can do is try and clean the contacts. Open the door on the thermistat and remove the two screws, after that you can seperate the part that is mounted to the wall and the front panel. Look at the part that is mounted on the wall and you'll see the contacts that should be a copper color. They might be black from age. Clean them and you'll be surprised how well it will work after that.
Denis
Denis
Yes
No
Solution #2
posted on Jan 08, 2009
I had the same problem and the funace was switched off.......now it works fine.
Yes
No
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