Question about Heating & Cooling

1 Answer

I have a Honeywell CM921 thermostat. I stupidly

I have a Honeywell CM921 thermostat. I stupidly let my young daughter play with it but shes now changed something on it and i haven't got a clue how to change it back as i don't know what the problem is TO change it. Ive put it onto manual as i always do but its now not going any higher than 5 degrees. Ive looked online and through the manual but there doesn't seem to be anything there. Please help

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 10 Answers

Press the time button once. The display will show 'RESET PROGRAM'.
Press the or buttons to select the preferred setting (0=user program,
1=factory program) and the display will flash, indicating a change has been
made. To confirm this change press the green button.

and don't let your kid play with it again until next year when her grasp on technology exceeds the current model smart phone... LOL

Posted on Dec 13, 2014

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 234 Answers

SOURCE: My Honeywell CM921 wireless thermostat is showing

Take the cover off and see if there is a reset button (usually recessed so you need a pencil or wire to push it. If that doesn't work check on the circuit board for a blown fuse. It might be like a car fuse 3-5 amps.

Posted on Sep 20, 2014

  • 34196 Answers

SOURCE: why will my programmable honeywell thermostat not keep changes to my schedule

Could be batteries need replacement

Posted on Apr 28, 2013

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Honeywell cm921


Replace the thermostat.

Oct 22, 2013 | Heating & Cooling

1 Answer

CM921 LCD figures breaking up


Hi There - I have a similar problem to the one described by yourself . Did anyone offer any help or assistance on this at all ?
Many thanks
M Hudson

Jul 15, 2013 | Honeywell Programmable Thermostat Heater

1 Answer

Is the TWO BLX wilson tennis racket really light?


It is said to be one of the lightest racquets ever made! My daughter got one last week and she adores it. Shes not so strong as shes quite young but this one she can swing easily.

Feb 20, 2013 | Sport & Outdoor - Others

2 Answers

The wifi connection from worcester boiler to room thermastat Honeywell Cm921 , boiler not receiving signal


Can't help you directly, but Honeywell will have user instructions on their website.
It's something like holding the 'stat within a metre of the boiler when the batteries are inserted. Best to RTFI.

Jan 27, 2013 | Heating & Cooling

1 Answer

I have a cm921 thermostat with the correct batteries showing full charge. Yet the battery light is flashing and says battery low. Also displayed room temperature is a lot higher than the actual room...


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.

Feb 28, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell thermostat CM921, how to set the heating for a 6.30am??


if you have a programable tstat you need to go through the settings for each day and time. usually the buttton will say prgm or program sometimes it will be set try to get into the settings menue and then you can adjust times

Sep 02, 2009 | Honeywell Programmable Thermostat Heater

3 Answers

Honeywell CM921 Showing room temp at -24 degrees, How do I reset?


Heya this is a manufacturing fault from honeywell them selves when it comes up -24 basically it needs to be replaced there is no way around in if you get in touch with honeywell they are generally good about it also if you provide them with the date code and model code they will be greatfull as it seems they have sent out a "bad batch". you locate this by:

A) Move the slide in to the off position
B) Press and hold i for 5 seconds
C) Unit will enter settings mode
D) Press and hold the i button and the + and ¿ button together
E) The unit will hold the relay on for 5 minutes and you can view by pressing the down arrow twice for model id/date code (ww/yy)

I hope this helps

Nov 11, 2008 | Honeywell Programmable Thermostat Heater

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

135 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2463 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...