Question about Honeywell Power Humidifier: Furnace Humidifier/ Humidifier

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New batteries installed and diplay blinking "rpl bat"

My Honeywell Chronotherm III LCD panel was very faint and I could barely make out that it said rpl bat. I replaced the 3 old AAA alkiline batteries with new ones and reprogrammed the theromostat. After less than 15 minutes, the "rpl bat" started blinking again. The thermostat is working fine and keeping to the program temperatures that I have set but I'm concerned that it keeps blinking. Why is this happening and how can I fix it?

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  • mt117 Jan 15, 2009

    I have a similiar problem, but in my case it takes a couple of months for it to happen again.

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5 Suggested Answers

SOURCE: honeywell chronotherm III air conditoner

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

  • 182 Answers

SOURCE: replacing thermostat for central heat and air/ not humidifier

rh and rc should have a jumper between them.connect red to either.y=yellow g=green w=white and do not use the blue.your new stat will run on batteries.

Posted on Jul 04, 2008

  • 17 Answers

SOURCE: 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.

Posted on Jan 27, 2009

  • 1 Answer

SOURCE: 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

Posted on Mar 15, 2009

  • 308 Answers

SOURCE: I have a Honeywell Chronotherm III Thermostat 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.

Posted on Dec 23, 2009

Testimonial: "Thank You. Your advice was right on the money. I was in the attic pulling out some winter gear and accidentally had turned off the switch next to the furnace which was the 24 volt power supply to the thermostat. "

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1 Answer

I HAVE A "honeywell chronotherm


Open the front panel, opens from the top, hinge at the bottom. You will see 2 Philips screws at the bottom at the "hinge" part. Unscrew them. Pull the thermostat from the wall by pulling off the top part. You need 3 AA batteries. You have 20-30 sec to change the battery without re-setting the program, so be prepared and have batteries handy. Make sure your + and - are in correct order- have a flashlight handy to see well. If you done it in time- you all set, if you are a bit late prepare to re-program according to your liking. You can re-program it while it is away from the wall, sitting in your chair! Instructions are on the inside panel, which you open All the best!

Nov 23, 2010 | Honeywell Power Humidifier: Furnace...

1 Answer

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...

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!
Anyone have any answers

Nov 12, 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 air conditoner


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.

Jun 05, 2008 | Honeywell Power Humidifier: Furnace...

1 Answer

Replacing thermostat for central heat and air/ not humidifier


rh and rc should have a jumper between them.connect red to either.y=yellow g=green w=white and do not use the blue.your new stat will run on batteries.

May 26, 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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