Question about Honeywell Power Humidifier: Furnace Humidifier/ Humidifier

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Honeywell chronotherm III air conditoner

The display shows the time and an error code of -AC. Help! I have tried flipping the breaker.

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  • Anonymous Jan 30, 2009

    Ours is having the same problem and can't figure out how to correct it. It is FREEZING!!

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1 Answer

I had that last night. I turned off the unit for a couple of hours and it came back on and ran and cooled. I have no friggin' idea if it will work but it got us through last night.

Posted on Jun 24, 2008

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A/C won't come on, replaced batteries, display reads -AC Honeywell chronotherm III Thanks for any advice !!!


HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions
If you can’t find what you want, the bottom left and bottom of web
Page, they have homeowners assistance and Home products to get the help you need.

Aug 07, 2010 | Honeywell Power Humidifier: Furnace...

1 Answer

I have a Honeywell Chronotherm III Thermostat and in instead of showing the temparature in the display it shows -AC. I've replaced the batteries, and tryied adjusting Temp up and down for cooling and...


It would appear to me that you have lost the 24 volt power supply to the thermostat. In referencing the manuals for this thermostat, available @ www.honeywell.com, I've found that when the thermostat is not connected to the wall plate (plate mounted on the wall, that the thermostat either snaps or screws into), it will display the -AC. This being said, either the thermostat is loose on the wall currently, or your 24 volt transformer has died. Hope this helps.

Dec 23, 2009 | Honeywell Power Humidifier: Furnace...

2 Answers

Chronotherm III...Replace Battery notification blinking...replaced twice with the appropriate batteries, turned the correct way. Cleaned off the battery terminals and still have replace battery...


Thermostat problem; Honeywell chronotherm lll ' Low Batt. indicator Keeps blinking after Batteries replace. I chk'd batt. with elect. volt ntr. Was told to pull batt. and change ends with them , letthem stay reversed for 5-10 sec. then put them back in right order,and replace thermostat. No success!
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Nov 12, 2009 | Honeywell Power Humidifier: Furnace...

1 Answer

I HAVE A HONEYWELL CHRONOTHERM 3, THE DISPLAY SHOWS THE TIME & -AC. I THINK THE UNIT IS FIRED. PLEASE ADVISE.


you have no power to the thermostat check to see if the furnace switch is on or if the blower cover is on properly.

Oct 17, 2009 | Honeywell Power Humidifier: Furnace...

1 Answer

Thermostat does not read current settings or respond to commands.


HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions

Oct 08, 2009 | Honeywell Power Humidifier: Furnace...

1 Answer

Honeywell Chronotherm III is stuck on Repl Batt


when i have seen this in the past, i have been able to clean the contacts that the batteries touch.they may not look dirty, but if they get a little corrosion or get tarnished, they will not let the full battery power get to the stat and it will think the battery is low. try cleaning it with some emery cloth and see if that helps.

Jan 12, 2009 | Honeywell Power Humidifier: Furnace...

5 Answers

Thermostat - Honeywell Chronotherm III


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

Jul 06, 2008 | Honeywell Power Humidifier: Furnace...

1 Answer

Honeywell Chronotherm III


Try this link:

http://yourhome.honeywell.com/yourhome/Applications/TechLit/TechLitSearchResults.aspx

It looks like there are a variety of model numbers for the Chronotherm III. Hopefully you can locate your model number.

Dec 17, 2007 | Honeywell Power Humidifier: Furnace...

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