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Honeywell TH4210D1005 Heater - Page 4 Questions & Answers
Honeywell thermostat not working for heat
a one zone home, ?????
is it a home or RV? or? no model Honeywell told. so yeah hard .
no HVAC system told
we can not guess what the stat is connected to ever.
my stat has batteries, for power loss, (my Huge generator is backup)
but I modified mine to run on batteries or 24vac too.
it is and option on my system and the extra wire was there for me.
so works for COLD AIR demand not said but kinda Implied?
what I do is always have a spare thermostat (in my KIT)
that way if one fails , the water pipes in the house do not rupture at 0C. (my neighbor just did and $75,000 damage feb2021.) ouch.
my wild guess is the heater on other end is off line, breakers tripped.
door left open (hatcH) or hot ignitor dead is it Gas fired NG or what?
blower dead
inductor blower dead.
and more can do lost more , even loose wires.
or the 24vac transformer popped dead.
10/20/2022 3:44:39 PM •
Honeywell...
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Answered
on Oct 20, 2022
Honeywell smartfit controller not adjustable
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.
9/20/2022 7:29:36 PM •
Honeywell...
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Answered
on Sep 20, 2022
Gas valve for hot water
To replace it, you'll need to know whether it's a Robertshaw or Maxitrol Valve. As well as the Model number of the valve and whether it's Natural Gas or Propane Gas. Unless, you're really experienced with working on gas appliances, I would not recommend this as a DIY project.
Hope this helps solve your problem.
4/19/2022 5:08:39 PM •
Honeywell...
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Answered
on Apr 19, 2022
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