Question about Honeywell Programmable Thermostat Heater

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Radiators cold when thermo says otherwise !

We have Honeywell cm61 thermo. I have programed it to come on at various times at different temperatures during afternoon and evening. however when reading states heating should be on the radiators are stone cold. Please help!

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First, check to see if the battery in the stat is good. If you can move the manual temp up and down...causing the relay to click on and off, the unit ought to work. If not the battery is bad or the stat is. IF THE UNIT IS ON 110V, you can't do the following:

If this is a two wire connection, simply short them out. If the heat comes on, the stat is bad. If not, the relay package is likely defective. You may want to get help from someone who knows electrical items.

Posted on Nov 13, 2008

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1 Answer

My thermostat when prgrammed and set on "auto" mode kicks on heat when temp drops below set temperature. The problem is that after warming up to that temperature...it does not shut the fan off. ...


I have a honeywell TH8320U thermostat and American standard Air handler with heating unit put in. THE thermostat works fine with the ac and follows the programs I have set. However the heat is a different story. The thermo clicks on to follow program but the unit does not run. (auto settings) If I place the thermo in heat and turn it to on I get heat?

Dec 08, 2010 | Honeywell Programmable Thermostat Heater

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I have just moved home and we have a Honeywell CM61 Prog.Thermostat but no operating instructions.Can you help?


Push run program for a preset schedule, once in the schedule you can change times via up/down temp buttons, push next to set next schedule period and so on. Otherwise push hold temp or hold to overide the program and run as a regular stat, for more info 1800 honeywell or Google support.

Nov 01, 2010 | Heating & Cooling

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I have just had a new boiler fitted and wanted to run the thermostat (honeywell cm921) on auto, the electrician set the timer to come on at 1 & off at 2 disabled at 3 & 4 and on again at 5 and off...


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Nov 11, 2009 | Honeywell Programmable Thermostat Heater

4 Answers

Honeywell - cm61ng- Keeps going on and off all night


Instructions on how to turn off your optimum start:-

Turn off ‘Optimum Start’
Step 1 Put the thermostat in the OFF position.

Step 2 Press 3 buttons together (at the same time) which are the INFORMATION BUTTON (i) and PROGRAM BUTTONS 3 & 4.
This will show a code of ICL 1 – now let go of the buttons.

Step 3 Press PROGRAM BUTTON 2.
This will now show a code of 30t 1

Step 4 Press the + BUTTON (on the left of the display), tap through until you reach 15 OP 1

Step 5 With the TEMPERATURE DOWN BUTTON; change the 01 to a FLASHING 0. Confirm the FLASHING 0 with the INFORMATION BUTTON ( i ). The 0 will now be static.

Step 6 Put the Thermostat back in the ‘AUTO’ position.
‘OPTIMUM START’ is now switched off.

Dec 31, 2008 | Honeywell Programmable Thermostat Heater

2 Answers

Red LED on honeywell r6660d


The problem is that the 2 units are "not speaking to each other". this could be caused by low batteries or a loss in signal caused by a powercut or an objection in the way of the 2 units.

first you need to turn the power off to the r666od (or otherwise known as the HC60NG) for 10 secs, then turn back on. then hold the grey button in for 15 secs. release then hold in for a further 5 secs.

go to the honeywell cm61 press the off button. hold temp up. temp down and prog 1 in for 3 secs until the dipslay goes to INST. at this point release all 3 buttons then press the i button until a beacon starts flashing.

this is now the end to your problem.

N.B the reason the green light was on is because the man override button will have been pressed.

hope this helps

Nov 14, 2008 | Honeywell Programmable Thermostat Heater

1 Answer

My heat is turning on but the fan isnt working. my honeywell thermostat is showing a flame and a blinking battery, and i know nothing about this thermostat, we just moved in . Can u help?


This is not a PC problem
Symptom
Heating comes on, but sometimes it
gets too hot, sometimes too cold.
Neutral not connected
Cure
Check wiring in room thermostat. Look for a
connection to the Neutral terminal (N 2 on
the Honeywell T6060, T6160, and T6360).
Make sure that it is connected (check
continuity).
If there is no neutral available, replace with a
two-wire thermostat, e.g., CT200, CM61 or
CM67. These will also offer extra energy
savings, (Without a neutral connection, the anticipator within the room thermostat does not work,
so the temperature control reduces from ± ½ºC to ±3ºC. People can feel a six degree
temperature swing. Then, if they try to adjust the room thermostat to overcome the
problem, the temperature swings become even worse.)

Mar 16, 2008 | Computers & Internet

1 Answer

Central heating thermostat


Looks like it was replaced by the CM67 series, try this link for the manual:

http://www51.honeywell.com/pacific/common/documents/CM67_User.pdf

Geno

Feb 29, 2008 | Honeywell Programmable Thermostat Heater

4 Answers

Honeywell cm61 controller


Turn off ‘Optimum Start’
Step 1 Put the thermostat in the OFF position.

Step 2 Press 3 buttons together (at the same time) which are the INFORMATION BUTTON (i) and PROGRAM BUTTONS 3 & 4.
This will show a code of ICL 1 – now let go of the buttons.

Step 3 Press PROGRAM BUTTON 2.
This will now show a code of 30t 1

Step 4 Press the + BUTTON (on the left of the display), tap through until you reach 15 OP 1

Step 5 With the TEMPERATURE DOWN BUTTON; change the 01 to a FLASHING 0. Confirm the FLASHING 0 with the INFORMATION BUTTON ( i ). The 0 will now be static.

Step 6 Put the Thermostat back in the ‘AUTO’ position.
‘OPTIMUM START’ is now switched off.

Dec 23, 2007 | Honeywell Programmable Thermostat Heater

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