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The fan outside won't come on and the thermostat is set on 70 degrees. We are hot!

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Here are a couple things you can do but be very careful. 1st take a voltage reading on the coil side of the contactor and see if you are getting 24vac to the contactor coil side. 2nd check your voltage on the legs of the contactor and see if they match the source voltage.

Hope this helps.

Posted on Jun 22, 2008

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The unit is on Heat, Fan Auto it's 36 degrees outside, Thermostate set on 73 Actual temp inside 70. Unit runs continuously. How can I get more heat. I tried Emergency heat and that doesn't help.


Have you cleaned the air return filters ? Wash them, don't vacuum or brush them. It damages the filter screen. Sometimes a thermostat will be out by a few degrees. If the filters are clean, try turning the temp down a bit to 65 degrees and see if the air con shuts down. ( If your room temp is showing 70, it should switch off the machine) If it doesn't turn off, keep reducing the temp by 5 degrees at a time and wait a few minutes each movement to see if and when it shuts down. If the machine keeps running, I would suggest your thermostat is shot and you will need a new one.

Jan 04, 2016 | Heating & Cooling

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Why is the AC still running after the set temp has been reached?


You may be hearing the fan run. Normally the fan will run 30-90 seconds after the unit has reached temperature to give you the air that you just paid to condition.
If it is actually the a/c running, that is because the thermostat internally reads in tenths of a degree. So when you set it to say 70 degrees, it is really set to 70.0 degrees. The thermostat will show 70 degrees when it reaches 70.5 degrees and continue to run all the way to 70.0 degrees
Welcome To the Best HVAC

Oct 10, 2014 | Heating & Cooling

1 Answer

67 mustang 200 cu that runs hot @ 220 plus


I had a 70 stang that ran hot. It had cracks in the block between the water jackets and the cylinder. It was blowing hot gas right into the water...

Jul 03, 2012 | 1966 Ford Mustang

1 Answer

We have a new a/c and the system has heat strips. For a/c. we have had the thermostat set on AC at 72degrees. Now that it is getting colder and may need some heat in the house, do we switch the...


If your thermostat has an emergency heat setting this means you have a heat pump system.
Yes you need to set the thermostat to heat for heating the house.
The emergency heat setting should never be used unless your outside unit is not functioning.
The emergency heat setting overides the heat pump (the outside unit will not be energized).
The emergency heat setting will run the auxillary heat (heat strips) only.
When the thermostat is set in the heat position the heat pump will run to heat your house.
If the heat pump can't keep up (extreme cold) then then the auxillary heat will kick in to augment the heat pump until it satisfies the thermostat settings. If your room temperature gets 2 degrees below your thermostat setpoint, your auxillary heat will kick on. Example, say you are going to be gone a couple of days and you turn your heat down to 60 degrees. When you return and it is 60 degrees in your house, you turn the thermostat up to 70 degrees. Since you are turning the temperature up 2 degrees or more (10 degrees in this case) from the 60 degree room temperature then the heat pump will come on and the auxillary heat strips. The unit will continue heating like this until the temperature in the house gets to 69 degrees and the heat strips will turn off and the heat pump will continue to run until the 70 degree setpoint is reached.
Hope this helps.
SeagullAC

Sep 15, 2011 | Heating & Cooling

1 Answer

I have a Honeywell RTH230 thermostat. Ive read the manual top to bottom and have set the temperature to 70 degrees and followed all the directions. But my home is still almost 85 degrees, and even hotter...


i am assuming the unit is coming on and all... there could be an issue with the refrigerant in the system such as a leak.. need to make sure the indoor fan is coming on and also that the outside unit is coming on..there are 2 copper lines at outside unit that are refrigerant lines the larger one should be cool and the small line should be warm.. there also should be hot air blowing out of the outside unit... if this is not happening you have a problem with either the freon has leaked or the compressor may not be coming on inside the outside unit \

Jul 20, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

My hotpoint BD31 fan oven's temperature is about 30 degrees higher than the setting on the dial. What's the possible cause of this? Could it be that the fan mechanism isn't working?


If the fan was not working, then it would not get very hot at all as then fan forces the hot air around inside the oven.
Most manufactures allow a tolerance of plus or minus 10 degrees variation in temperature from the temp setting., so setting at 200 would give you 220 with 10 % plus, or 180 with 10 % minus, so yours is outside the acceptable range.
You can compensate by setting the thermostat 30 degees lower than normal, or the more expensive option, is to have a new thermostat fitted.
In my experience, compensating for the variation in temp, is a satisfactory solution.
However, if it gets worse, then your only course of action, is to replace the stat.

Trust this answers your question.

Nov 28, 2009 | Hotpoint DY46 Style Line Stainless Steel...

1 Answer

How to use a SUNBEAM twin window fan with


Intake brings the air outside into your room, exhaust pushes the air inside your room out.

What setting you use depends on your personal taste of temperatures and the temperature inside vs outside. If you set the thermostat to 72 degrees and it is more than that outside then I would use the exhaust setting. If you set it to 72 degrees, and it is 68 outside but 84 inside then I would set it onto intake to cool the inside air.

Jun 21, 2009 | Dryers

1 Answer

When my unit is on the outside is not working the inside is blowing little hot air. What do I need to check? Its a Ruud Achievers Series


Set the thermostat four degrees lower then house temperature and fan to on. Go outside and see if fan is running. If not check circuit breaker.

Apr 26, 2009 | Ruud UBHC Air Conditioner

1 Answer

I set the thermostat to 70 degrees but it doesnt cool down to 70, it seems that the temp in the house only rises, instead of cools down.


Setting Unit at 70* ? and not cooler ( dropping temp in the house ) Question ? does temp dop at all, if so the Unit maybe unsized, if the temps are going up then the unit is not working at all - maybe just the fan is running. If this is a split unit ( outside unit / furance). A number of things could cause the same problem - call a sevice company. it could be anything -from a Breaker to an electrical part, split Units have to different breakers ( fuse) . Check that first

EM

Apr 26, 2009 | Heating & Cooling

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