Question about Honeywell Programmable Thermostat Heater

2 Answers

Heater blower motor cycles on and off (frequently). I have a class 2 LR95329 Honeywell Thermostat

Last year my Coleman gas furnace would not stay running (the electric blower motor would not stay running). The unit has some age, so I pulled the blower motor out to inspect. It looked old, so I replaced. The same problem occured (frequent cycling on and off of blower motor). Next, I repaced the old Thermostat with a new Honeywell (analog type- # listed above). I also replaced the thermocouple with a new one. This solved the problem.
I just prepared the furnace for a new season (cleaned burner area, filter, inspected area, cleaned thermocouple with alcohol (pilot light had been on throughout the summer), and then, turned the gas off, waited 5 minutes and started the lighting process. The furnace lit up fine. I then increased the thermostat and the main flame ignighted. The blower motor started up in a short time, but then cycled off again. It began acting in the same manner as last year (cycled on and off). I noticed that when you touch, or bump the thermostat, I hear a click in the furnace area. This must be a device in the furnace area that closes contacts, to complete the blower motor curcuit. I'm thinking it may be the thermostat, or possibly the thermocouple.
What do you think?

Thank you for your effort!

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 288 Answers
Re: Heater blower motor cycles on and off (frequently). I...

The clicking noise is a relay or switch of some sort. You are right about that. I have 2 questions. 1) does the thermostat have a mercury bulb in it? 2) when the fan shuts off and on, does the burner stay on?

Posted on Nov 05, 2007

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Heater blower motor cycles on and off (frequently). I...

I had the same problem with a Coleman. The problem is the blower relay. You can find this at

Posted on Oct 21, 2008

3 Suggested Answers

  • 4720 Answers

SOURCE: thermostat won't keep furnace fan running

You probably have a loose or broken wire to the fan relay. Check the wires on the thermostat first. Pull up on the bottom of the thermostat to remove it from the wall plate. You should see several screw terminals and the conductor wires that should be connected to them when you look at the wall plate. Check if any of the wires are disconnected or broken. If a wire is broken, strip a portion of the unbroken section of the wire and secure it to the appropriate screw. (The fan relay terminal is G for most setups.) If none of the wires are loose or broken, then you have to check for damage to the wires between your heating system and the thermostat or at the heating system. It could be a bad wire going to the jumper on control board or damage to the board itself.

I hope this helps. If the problem is not at the thermostat, you may need to have a professional diagnose and fix the problem. However, if you post additional comments about your heating system, Fixya experts may be able to help you diagnose the problem.
Cindy Wells
(we had the broken wires at the thermostat keeping the fan from working in the past. It's an easy fix if you are willing to handle small wires carefully.)

Posted on Jul 06, 2013

  • 2113 Answers

SOURCE: i have a honeywell thermostat t6360.the light

Many thermostats have battery backup as well as the 24 volt ac. Have you replaced the batteries to see if it fixes all of your issues at once?

Posted on Nov 02, 2013

  • 571 Answers

SOURCE: round honeywell thermostat

Sounds like you have a T86 thermostat...take the round front cover off to view the Mercury switch. Watch the bulb when you change the temperature to a higher setpoint. If the bulb makes contact when rotating it up, and the furnace doesn't go into a call for heat, then it could be the thermostat, wiring, or furnace problem.

Posted on Dec 15, 2013

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Pilot lights up but would not fire up into heating, I have brivis buffalo 85

This is the proper cycle of a furnace and what should happen.

Inducer motor kicks on, it runs for a little bit, about 3-5 seconds, then you should see a bright yellow glow, this is the igniter, shortly after, you should hear a click and the gas should start to flow, almost immediately it turns to a blue flame. Then your igniter should turn off and the blower motor start up.

If the pilot turns on and the gas ignites, then shortly after the unit shuts off, chances are this is your blower motor. It is not starting up, then the heat limit is reached in your unit and the safety shuts it off.

Mar 02, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

I have a new York hybrid heat pump/gas furance

Did they check the sensor in the plenum. You are suppose to have bonnet sensor to switch from heat heat pump to gas whaen it is to cold for the heat pump. The bonnet sensor may be to bad. The unit is cycling ever five minutes because it may have five minute time delay.

Dec 15, 2009 | Honeywell Programmable Thermostat Heater

2 Answers

Honeywell RTH2310 thermostat temp variance

Yes you can change that by change the number of cycles per hour that your t-stat looks from for youe furnace. Lower the cycles per hour number and it will increase the range.

You can see how to do it here

I hope that this will help you to solve your problem!

Thanks for using Fixya!!


Dec 12, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Want to replace analog Honeywell thermostat with digital

Your system uses 24 volts and that thermostat should work. You should only have a two wire system and that should work using the RH and W connection on the thermostat. My personal opinion about that thermostat...I don't like it. It will timeout for 15 minutes after furnace does not fire up. I deal with this thermostat all the time because that is what they install in the new homes. I always have to pull it off the wall, remove the batteries and wait for it to completely drain power becuase it does not have a reset switch. Very irritating...Might be too complicated for your application.

Oct 17, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

The thermostat turns the heating unit off and the fan continues

check your furnace filter to make sure the furnace is not over heating. what brand of furnace do you have and how old is it?Have you changed filter to a different kind last time you changed it?

Jan 16, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Blower on Carrier Crusader Gas Forced Air Furnace problem

You have a system that is 20 years old. The cost of the repair may be 1/2 of a new unit. This unit will continue to fail and only cost you more that you can expect to get out of it.

Nov 28, 2008 | Honeywell Programmable Thermostat Heater

Not finding what you are looking for?
Thermostats Logo

2,269 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Thermostats Experts

Bill Long

Level 3 Expert

571 Answers


Level 3 Expert

1751 Answers

Ken Thomas

Level 2 Expert

118 Answers

Are you a Honeywell Thermostat Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides