james ousley Posted on Oct 06, 2014

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Honeywell thermostat blows cold air on heat - Honeywell Heat/Cool Thermostat

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Larry

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Posted on Nov 30, 2014

Larry

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I had a similar problem with my Honeywell thermostat as well. Turns out it was a combo of me setting it up wrong and it's "Smart Response Technology" I turned off the smart response and setup my thermostat again and made sure it was set to a gas furnace.

Honeywell RTH9580 Wi Fi thermostat Furnace blowing cold air

Steve Allison

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Posted on Oct 06, 2014

Steve Allison

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Could be improperly installed (wrong wiring) or the furnace/heater portion of your central air/heat isn't turning on.

drvalentine

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Posted on Oct 06, 2014

drvalentine

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Thermostats don't actually blow anything, the heating system might though. Check the breakers for your heat system, then call a heating specialist. They're really not that expensive.

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My Honeywell thermostat isnt keeping my house cool even though the temp is set to 69. Currently 90 degrees in here

Its probably not the thermostat. The air conditioner may be stuck on heating mode. If its a reverse cycle, the reversing valve may be jammed so even when the thermostat is calling for cold air, it stays on heat. If the machine is on heating mode, it should be blowing cold air out of the outdoor unit of the air con. If its on cooling mode, the outdoor should be blowing hot air.

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Apr 12, 2015 • Honeywell Heat/Cool Thermostat

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Need to know the type of heat you have. If it is an air to air heat pump, with this cold weather, you are not going to get much heat out of it. It will feel cool (a little higher than room temperature). If the temps outside stay below 25 degrees, then switch it to Auxillary (Emergency ) heat.

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Nov 25, 2013 • Heating & Cooling

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My honeywell heater is blowing cold air, could it be the thermostat? It did the same thing yesterday and eventually began blowing heat, then late last night started blowing cold air again.

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Feb 05, 2011 • Heating & Cooling

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My honeywell heater thermostat is only blowing cold air, there is no heat blowing regardless of setting. how can i fix it? it won't even turn off.

the wiring for thermostats are color coded. R(red)power, Y(yellow)cooling, G(green)common, W(white)heating. O(orange), E(emergency)heat. Make sure that you have the right thermostat because there is an air condition thermostat and there is a heatpump thermostat and they wire up differently.

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Nov 27, 2010 • Honeywell Programmable Thermostat Heater

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Sometimes the fans kicks in by time ---or by heat...even if the heat cycles dont starts . Is this gas or electric,, name brand,.... model # ect...ect..

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Dec 12, 2009 • Honeywell Programmable Thermostat Heater

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HONEYWELL THERMOSTAT RTH100B FURNACE BLOWING COLD AIR

Chances are that the thermostat has nothing to do with the blowing of cold air. Get in front of your heating system and give us the make and model number along with any signs of blinking lights (usually a diagnostic code). It could be something simple as a plugged air filter. Or you could spend a bunch of money on a technician when you might be able to save some of that by letting us know what you have.

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Dec 12, 2009 • Honeywell Electronic Programmable...

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you need to program the thermostat for the reversing valve "O" it will tell you how to do this in the manual. you will need to chang from "O" to "B" or "B" to "O" depending on how its set.

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Jun 24, 2009 • Honeywell Programmable Thermostat Heater

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When on AC the air blows hot, when on heat the air blows room temprature

This is a wiring issue or you have a heat pump and the reversing valve is stuck.

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Jun 03, 2009 • Honeywell Electronic Programmable...

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is the condenser operating? what is the outdoor temperature? A heat pump is a cooling system with a reverse gear, most reversing valves which make this possible fail to the heat mode so it is not likely to be the problem. You should have either gas or electric back-up heat. If you switch to emergency heat do you get warm air? Really need to find out more to make an informed guess at your problem, the simple stupid would be is the circuit breaker to the condensing unit possibly tripped or shut off?

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Dec 18, 2008 • Honeywell Programmable Thermostat Heater

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It sounds like your reversing valve energizes the opposite from how you wired it at the thermostat. Check the instructions.

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Honeywell thermostat blows cold air on heat - Honeywell Heat/Cool Thermostat

3 Answers

Larry

Steve Allison

drvalentine

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My Honeywell thermostat isnt keeping my house cool even though the temp is set to 69. Currently 90 degrees in here

Honeywell thermostats keep turning off and on and blowing cold air

My honeywell heater is blowing cold air, could it be the thermostat? It did the same thing yesterday and eventually began blowing heat, then late last night started blowing cold air again.

My honeywell heater thermostat is only blowing cold air, there is no heat blowing regardless of setting. how can i fix it? it won't even turn off.

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HONEYWELL THERMOSTAT RTH100B FURNACE BLOWING COLD AIR

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When on AC the air blows hot, when on heat the air blows room temprature

Heat pump that just blows cool air

Heat pump thermostat replacement

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Heat/Cool Thermostat

My Honeywell thermostat isnt keeping my house cool even though the temp is set to 69. Currently 90 degrees in here

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Honeywell thermostat blows cold air on heat - Honeywell Heat/Cool Thermostat

3 Answers

Larry

Steve Allison

drvalentine

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Related Questions:

My Honeywell thermostat isnt keeping my house cool even though the temp is set to 69. Currently 90 degrees in here

Honeywell thermostats keep turning off and on and blowing cold air

My honeywell heater is blowing cold air, could it be the thermostat? It did the same thing yesterday and eventually began blowing heat, then late last night started blowing cold air again.

My honeywell heater thermostat is only blowing cold air, there is no heat blowing regardless of setting. how can i fix it? it won't even turn off.

Furnace blows cold air

HONEYWELL THERMOSTAT RTH100B FURNACE BLOWING COLD AIR

One honeywell to another

When on AC the air blows hot, when on heat the air blows room temprature

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Heat/Cool Thermostat

My Honeywell thermostat isnt keeping my house cool even though the temp is set to 69. Currently 90 degrees in here

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