Question about Honeywell Programmable Thermostat Heater

1 Answer

Honeywell rth230b won't shut off heat

I have Honeywell RTH230B programmable thermostats installed. They have been working fine for months. Now, they occasionally fail to turn off the furnace - and the house heats up indefinitely. After manually turning the furnace off and on, sometimes this problem corrects itself. Recently the problems are happening more frequently. When the thermostat reaches the set temp., it does "click" and indicate that the heat is off, but the furnace stays on... Any thoughts??? Sorry if this has been asked already.

Posted by on

  • 1 more comment 
  • Anonymous Nov 23, 2008

    I have the same problem with the same model thermostat. were you able to solve the problem.

  • Herbz47 Nov 23, 2008

    I have the same problem with the same model thermostat. were you able to solve the problem

  • Anonymous Mar 28, 2014

    I can turn the furnace on and off to heat the house from the fan switch on the thermostat by turning it from auto to on

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 518 Answers

Sounds like a relay sticking. Possibly in the thermostat or possibly the furnace relay at the furnace. The next time it happens, unplug the thermostat from the wall. If the furnace still runs then it's the furnace relay.

Hope that helps...

Geno

Posted on Mar 07, 2008

Ad

1 Suggested Answer

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Heat not coming on. battery died.


Please go to the link and check graph "2.5 Installing the Batteries". Its really easy so it should be a piece of cake.https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-1800.pdf

Mar 30, 2014 | Honeywell RTH230B 5-2 Day Programmable...

1 Answer

I installed a Honeywell RTH230B model thermostat. The heat works fine, but the AC is blowing warm air. Wires from old system are as follows: Y=yellow; G=green; R=red; O=brown; C=blue; E=white (it looked...


the colors of old system are for heat pump.if you have a heat pump you need heat pump thurmostat and colrs will make more sense.if not,then you need to go into furnace to see what colors go where.yellow is cool, goes to compressor contactor,usually another wire going from furnace to outside unit.green is fan relay rh is heat call rc is cool call

Jan 01, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

I have a Honeywell programable RTH230B. I changed


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.

Jan 08, 2010 | Honeywell Focus 6300B 5-2 Days...

2 Answers

Honeywell RTH230B works on AC not on Heat


check wiring to furnace check wire hook ups on board match letters and colors sometimes installer use what ever wiring they chose on letters

Oct 16, 2009 | Honeywell Electronic Programmable...

1 Answer

Honeywell RTH230B will not call for heat.


On a call for heat an internal switch should connect Rh and W, if it does not the stat is bad. Try it with no wires connected.

May 18, 2009 | Honeywell Focus 6300B 5-2 Days...

1 Answer

Honeywell RTH230B


This my situation exactly.  Changing from a 6 wire manual round Honeywell thermostat to a 5 wire Honeywell programable.  Is there a way to maintain all functions?

Sep 21, 2008 | Honeywell Programmable Thermostat Heater

1 Answer

Model RTH230B uses a lot of batteries


THIS TYPE has been deemed defective! changeout to a different type.

Sep 04, 2008 | Honeywell Programmable Thermostat Heater

1 Answer

Problem with Honeywell RTH230B Thermostat


I have my temp on C and I need to change back to F I have the RTH230B programable

May 30, 2008 | Honeywell Programmable Thermostat Heater

2 Answers

I can't program my thermstat


go to www.honeywell.com. There you will find a search tab. Type in the exact model number of your thermostat. You will be able to download the installation/owners manual.

Nov 29, 2007 | Honeywell Programmable Thermostat Heater

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

2,327 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honeywell Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers

Paul Carew

Level 3 Expert

2598 Answers

vance jones

Level 2 Expert

120 Answers

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

Answer questions

Manuals & User Guides

Loading...