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I don't know how to set digital thermostat. Heat is coming out instead of air. I need to set the cool air.

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Remove the front cover and check your wiring. r-red=power y-yellow=cool w-white=heat g-green=fan.... r-should be hooked up to r-h and a jumper wire-to rc...!

Posted on Sep 05, 2008

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2 Answers

My Dometic digital thermostat wont go up past 32 degrees. What could be wrong?


indicates inside sensor defective or not communicating resulting in a/c being locked out.

Sep 16, 2014 | Dometic 3313192.000 White Single Zone LCD...

1 Answer

How do i adjust AC temperature variance on a Honeywell TH5220D1003 thermostat


If you are talking about the difference between heating mode and cooling mode and the room setpoint, you can not change it. It comes from the factory with a 3 degree difference. In other words if you raise the heat setpoint until it is within 3 degrees of the cooling setpoint, for every degree you raise the heat setpoint the cooling will raise a degree.
About all you can do is increase the distance between the heat and cooling setpoint. To do this either lower the cooling setpoint to 3 degrees higher than the heat setpoint you want and then increase the cooling setpoint the desired setting. For example heat and cool setpoints are 67 and 70 respectively, and you want 65 and 73. Lower the cooling setpoint to 68 and then raise the cooling setpoint to 73. Now your heating will come on 3 degress lower than 68, the 65 you wanted and cooling will come on at 73. Remember, the thermostat new setpoints will turn on the cooling at 75 and turn back off at 73 and heat will turn on at 63 and turn off at 65.
You can perform the same using the heating setpoint, just have to look at it backwards. If you need to lower the difference I recommend a 8000 series thermostat. They are the most functional thermostat that Honeywell makes, be in mind they are about 3 times more expensive and many of the setting require a well trained tech to interpret and set properly.
Hope this helps.

Aug 24, 2014 | Honeywell Th5220d1003 Non-programmable...

1 Answer

FocusPro TH5000 will not cool


Make sure the thermostat is set to "cool" mode. Make sure the thermostat is wired correctly and has fresh batteries in it. Check both the thermostat end and the air handler end of the wires. If All this checks out, the problem is most likely in the air conditioner, not the thermostat.

Mar 29, 2014 | Honeywell TH5220D1003 FocusPRO 5000...

1 Answer

I have a whirlpool wall heat/ac unit, model ACE184XL0. All of a sudden, the heat quit working. Fan still blows, and AC still seems to work, although I can't tell if it's just pulling in cold outside air...


Dear it is a thermostat system. You can simply check it by setting temp at 30 then check either warm air is coming or cool air. at this time warm air should come. If warm air is not coming means there is a fault is realy in your pcb. It can be simply remove no need to worry.

Oct 14, 2013 | Whirlpool ACE244XS Air Conditioner

1 Answer

WIRING THE THERMOSTAT TO AC UNIT THEN FROM THE UNIT TO HANDLER


Generally, you would go from the thermostat to the air handler, and then, from the air handler to the outdoor unit. I don't know if you have a heat pump or not, so I will give you a simple diagram and you can contact me if you need more.

Thermostat : Y G R W and sometimes C
Air handler: Y G R W and C
Outdoor unit: two wires connecting to the contactor ( not heat pump)

Thermostat; Y--------------Y(air handler cooling)------------------one side of contactor, outdoor unit
G-------------G (air handler, fan)
R--------------R (air handler ,hot)
W-------------W (air handler, heat)
C--------------C (air handler, common)------------other side of contactor, outdoor unit

This is a typical wiring diagram. Just contact me if you have something different. Hope this helps. Stay cool. mark

Jul 10, 2011 | Air Conditioners

1 Answer

What happen when your hvac blows cold air and the heat is set at 73


Sounds like you have a thermostat problem. If your thermostat is not triggering the furnace to ON/HEAT you will not the heat you desire. IF you know how to trigger the furnace you could jump your furnace controller wires BUT DON'T do this. Instead, get another thermostat and try it. But be sure to get the same rated thermostat... take it with you when looking for a replacement.
Not sure about everything going on with your unit based upon what you provided but your thermostat should show the current temp and the temp you set. It also show the mode that the thermostat is in (HEAT / COOL / AUTO) Manually select heat, then increase temp above the current temp setting. listen for furnace to activate or wait a few minutes for warm air output. If not, you'll have to see assistance trom a local heating and cooling company.

Mar 09, 2011 | Goodman Air Conditioners

1 Answer

Can somebody help,why is my Central AC blows


Most heat pumps have an auxillary heat. Many are electric auxillary heat with a heat strip in the air handler. A common malfunction is for the electric auxillary heat to operate when the heat pump is set on cool. To confirm this, locate the conductor that runs from the heat sequencer to the connection on the heat strip. You will see this on the top section of the air handler. Use the clamp on part of the amp meter over that wire. If the thermostat is set on cool and the heat strip is drawing amps, it means the heat is coming on while the heat pump is set on cool. There is usually one or two causes for this, either the sequencer is bad or there is low voltage wires usually behind the thermostat or in the air handler closet that are touching that shouldn't be touching.

If this is not the case, if its not a problem of where the heat is coming on with the air conditioner, it could be a case of the reversing valve malfunctioning. The way a heat pump works is it reverses the flow of the refridgerant. For instance, many heat pumps the reversing valve is activated in cool. That would mean that there is a low voltage circuit that activates the reversing valve when the heat pump is in cool. I'm not sure what model/brand your heat pump is, Goodman and Janitrol for instance, the heat pump reversing valve is activated in cool. In any case, if the reversing valve is not operating properly, when the air conditioning is set to cool it will actually be heating. Or you could set it to heat and it may actually be cooling instead of heating. Please check these two items first and if you have any further questions, please let me know. Especially if you know of any additional problems like the evaporater is icing up or if the air handler fan is not operating when it should.

Aug 31, 2009 | Air Conditioners

2 Answers

My air handler comes on ,not the outside unit when my thermostat is in the off position even if i turn the thermostat down to 50 and have it turned off the air handler comes on for about 5 to 10 minutes...


If you have a standard thermostat the fan switch is for the air handler only. It completely over rides the thermostat for most settings. Now lets see this is what I'd expect:
fan switch on Indoor fan runs all time
Fan switch auto Indoor fan only runs when thermostat is set to cool or heat and the thermostat is turned up above room temp for heat or below room temp for cooling. In both of these modes the furnace blower comes on and stays on til the room temperature is satisfied. The outdoor unit only comes on for AC the out door unit will not come on for heat or the "on" setting on the thermostat. See exception 1 & 2 below...

Exception 1- (in a heat pump the out door unit runs in both heat and cool mode unless it has emergency heat turned on then it will not come on outside in the heat mode, and depending on the type of heat pump and furnace or air handler it is). A heat pump thermostat usually has "backup heat" and an "emergency heat" setting switch on the thermostat.
Exception 2 - On some thermostats they are made to cycle on the heat if the temperature reaches a preset temp (around 50'f usually but definitely by 40'f). This mode prevents freezing when if instance the homeowner is away or while the home is under construction. In this mode the fan inside can run but the heat usually comes on with it.
Exception3 - On some electric furnaces the heating strips may be individually controlled and thus not all come on at one time. This may give the feel of no heat especially if the room is cold.

Now there may be other exceptions but Ive tried to give you a heads up on some of the most common ones.
If you need more help please post more specifics about your unit/system as to for sure what switches are set to what setting and what is happening with each. My first though was that maybe your system is OK and you needed to know if the thermostat was working properly.

If this helpd you understand your problem would you please give me as hifgh a mark as you can. Thnaks for using fixya and good luck.

Mar 28, 2009 | Carrier Air Conditioners

1 Answer

Thermostat setting


what i would do is see if the outside unit is working at all. when you first turn it on the air was warm due to the fact that the temperature inside was cooler than the set point. when it get within 2 degrees the unit shuts off the backup heat and your running on the hp alone. with both stages at the same temp you are running the hp and the electric heater and that can become very expensive. What I would do is make sure that the filters were clean and look at the outside unit and see if it has a red reset button on it, if it does reset it and see if the unit runs. If it doesn't then you need to call a quallified service person out to take care of the problem.

Dec 16, 2008 | Weather King 12AJA6001AH Air Conditioner

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