Honeywell TH4210D1005 Heater - Answered Questions & Fixed issues

google the model number on the stat..It will take you to one of honeywells site, where you can download the instructions.

Honeywell... | Answered on Feb 08, 2018 | 40 views

All gas furnaces have a pilot light. On the On/off dial, look for the word "pilot" turn it to pilot and press. You should be able to find where he gas is coming from(small stream) let go and air out the area. Press in the button and apply a long match or torch to light the pilot. Keep pressed for about a minute, then let the button go slowly.
If it stays lit, turn the dial to 'on' then the dial at th thermostat should do the rest.

Honeywell... | Answered on Dec 20, 2017 | 87 views

It depends on your system some will only work with hot water on and heating do you have two zone valves?

Honeywell... | Answered on Sep 27, 2017 | 157 views

Sounds like either a short between the G and R t stat wires or the relay in the control board is faulty. Easy way to check is remove the G wire from G terminal on the control board, if the blower stops, there is a short in tje t-stat wiring, if it continues to run a new control board will be needed since the relay is part of the board.

Honeywell... | Answered on Jan 08, 2013 | 174 views

what do i do?

Honeywell... | Answered on Nov 26, 2012 | 45 views

Sounds like it's low on refrigerant.

Honeywell... | Answered on Aug 08, 2012 | 60 views

Red (power) from furnace to thermosat R ...... White(heat) to W on thermostat

Honeywell... | Answered on Sep 18, 2011 | 134 views

Here's a link ......

Honeywell... | Answered on Mar 28, 2011 | 258 views

if your talking about your T stat control for heater will not turn on replace it it,s bad

Honeywell... | Answered on Feb 23, 2011 | 35 views

try this. open the front of your furnace and look for the thermostat wires. i' dont know what you have but anywhere from 2 to 6 wires in something like a phone wire .find the termial board and take the red wire off. then close the furnace back up making sure the doors are on correctly.did this stop the frunace from running? if so you have a short in the thermostat wiring. check it to see where it is shorted out .replace the red wire and away you go.

Honeywell... | Answered on Feb 02, 2011 | 49 views go to the bottom of the page and download the instructions

Honeywell... | Answered on Feb 01, 2011 | 53 views

For temporary heat while you shop for a new thermostat, take the wire off terminal R and cross it with the wire on terminak W. This will start heat cycle and will run as long as you have the wires crossed. Do not keep wires crossed more than 10 minutes each time you do it.

Honeywell... | Answered on Jan 23, 2011 | 159 views

It means you need to cange the batterys.

Honeywell... | Answered on Jan 21, 2011 | 476 views

the unit has been set up in the installer set up for recovery... this is for when you are running a program on the thermostat and say you have it set for 5:00 p.m. to come n and run at 70 degrees the revovery is where the thermostat knows at 5:00 p.m. it will not be 70 degrees so determines run time and may come on several hours before your programmed time in order to be 70 degrees at 5:00 oclock.... you can turn it off so that the program will only come on and go off at desired programmed times... you will have to get into the installer set up feature usually requiring to hold down 2 of the buttons at the same time... hopefully you have your paper work on the stat still if not repost with a request for a manual or instructions good luck to you...

Honeywell... | Answered on Jan 09, 2011 | 3,948 views

Try new air filter.Maybe going off on hi temp limit control ? Short run time.

Honeywell... | Answered on Jan 05, 2011 | 47 views

Mine has two switches one says cool - off - heat, the other says fan on - fan auto. For heat I set the first to heat and the second to auto. This puts everything in to heat mode and the fan runs from the furnace control now not constantly. Hope this helps you out.

Honeywell... | Answered on Dec 28, 2010 | 80 views

here is the owners manual for that unit. it shows to push a button on the bottom of the unit to remove from wall plate. hope this helps.

Honeywell... | Answered on Dec 21, 2010 | 136 views

Check to see if your rite temp thermostat is set for proper op. What is Make and MOdel of your heat pump. Rus

Honeywell... | Answered on Jan 22, 2010 | 328 views

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