Question about Honeywell Programmable Thermostat Heater

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My heating/cooling blower (not the outside unit but the fan in the garage) does not turn off, even when my Honeywell TH8000 is set on automatic. What can I do to have the fan motor shut off?

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  • TSandell Jan 25, 2009

    I have the same problem and am looking for a solution. Does anyone know a tech support number for Honeywell? If so please send to pctinas@yahoo.com



    Thanks

  • Anonymous Feb 21, 2009

    Same problem. Just change my Termostat thinking it was defective. The blower will not shut off on auto.

  • knocknow Mar 01, 2009

    Inside blower fan runs all the time on heat, but cycles on cooling. The unit warmes up and shuts down but the blower stays runing. After a hour or so the unit goes back on and it warms the house and shuts off while the blower never shuts off.

  • Scott Magill May 11, 2010

    Is the fan in the on position on the thermostat? It sound like it is on instead of auto. What kind of heat system do you have? Is air hot or cold ? When you turn heat down does fan still run? You can disconnect green wire on back of thermostat. I this a new thermostat that was just installed if so wires are not connected wright. If not you might need new one. You could have a problem with heater to. Does heater turn on when thermostat is turned up and go off when it reaches desired temperature?

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Try hard wiring your 24 volt that goes to the outside unit to the yellow wire coming back from your thermostat make sure the yellow wire is on the yellow terminal on the thermostat (honeywell) i have run into situations when this seemed to be the only thing that worked

Posted on Aug 25, 2010

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3 Answers

Even when system is turned off the fan runs. put batteries in as there were none, no change. is thermostat shot?this an ac/furnace unit with vision pro th8000 series thermostat


The issue is probably not the thermostat. The thermostat is a series of switches that turn on and off in respect to the temperature. Since it takes batteries and installing those made no difference there is a chance that a relay is stuck in the furnace or the thermostat. I have attached the testing and installation guide for you to look at. Honeywell VisionPRO TH8000 Series Installation Manual Installer System Test

Mar 05, 2018 | Heating & Cooling

1 Answer

I have a honeywell th8000 that the screen is blank like it has no power, what can i do to fix it?


Likely have a clogged drain. Check the unit for a float switch tripped because of water.

Nov 26, 2017 | Honeywell Heating & Cooling

2 Answers

In the zoning system cooling does not get turned off automatically


If the blower not turning off or is the condenser not turning off. Are ALL ZONES satisfied? Is fan in auto position at all zones?

Jul 04, 2017 | Honeywell Heating & Cooling

1 Answer

Honeywell tstat not working in auto cool mode


so with system setting cool/ fan setting auto, the condenser runs but the indoor blower does Not? but when system setting cool /fan setting on, the condenser runs and the blower runs?

Oct 25, 2017 | Honeywell Electronic Programmable...

1 Answer

Replaced Thermostat and now Blower Motor will not run


Sounds like a set up issue on the tstat. You say this is a packaged unit, inside the machine you should find where the tstat wires hook up. Typically red is power yellow is compressor orange is reversing valve white is emergency heat green is blower. Put red and green together, test blower. Then red green and yellow, make sure blower works again. If blower runs both ways it's either the tstat wire or tstat itself. Make sure you are landing wires on dedicated heat pump terminals, make sure in settings you are set up for heat pump with back up electric heat and TSTAT CONTROLS THE FAN. Good Luck. Also if there is a switch on the tstat for gas or electric on the back you want electric.

May 12, 2017 | Heating & Cooling

1 Answer

HAVE A HONEYWELL THREMOSTAT TH8000 NEED WIRING HELP HEAT IS COOL COOL IS HEAT


Most of the time the white wire hooks to W and the yellow wire hooks to Y....... W= Heat Y= Cooling In any case if you are getting Heat when you set the thermostat to Cooling....... Turn the furnace off at the ssu or main breaker and then ... Pop the thermostat off of the subase and switch the wires that you have on Y with W and put the wire from Y to W.... Here is some more information on how a typical thermostat is wire in the pdf..... Hope this helps...

Here is a pdf for the installlation manual for a Pro 8000
http://www.hydro-temp.com/help/drawings/honeywell%2069-1894ES.pdf

May 05, 2011 | Honeywell Heating & Cooling

1 Answer

Mystery message "wait" appears above "following schedule" display line on our Th8000. Ac does not come on even when temperature is in range. Fan operates ok. Is "wait" setting one I can reset? Maybe a...


Mystery message "wait" appears above "following schedule" display line on our Th8000. Ac does not come on even when temperature is in range. Fan operates ok. Is "wait" setting one I can reset? Maybe a compressor issue rather than thermostat? Thanks

Jun 21, 2010 | Honeywell Electronic Programmable...

1 Answer

How do you wire a honeywell round mechanical thermostat


What are you trying to wire up?
Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
HEATING ONLY
R or Rh One Side of 24 volt Transformer
W = White Heat

Feb 09, 2010 | Honeywell CT87B ROUND HEATING&COOLING...

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