Question about Ruud UBHC Air Conditioner

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Air dont turn on

My air doesnt work when its on auto cool only on the fan and the little digtal box for the temperature needs to be program i dont know how to do that what should i do?

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  • 210 Answers

Need more info. Is this a heat pump? Did someone try to change
tstat. Recomend non-programable tstat. The pro-line honeywell
series w/large display is what I use.

Posted on Mar 23, 2008

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Where can I get a manual for my Emerson Quiet Cool Room Air Conditioner? Not sure the model, but these #s were on outside of box: 10DC93 784040B OE21M N14421, is on a little sticker on the right...


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Exhaust - should be closed when using for Air Conditioning
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How do I Turn the heat on ?


It's hard to answer that question because there are so many variables. First I would look at the thermostat and see what manual settings are available. If it's a non programable there should be a switch that goes from heat to cool,one position for fan on , one for off, and one for auto. Set the heat/cool switch to heat. the fan on ,off and auto to auto. Then turn thermostat control up so it's above surrounding temperature.This should cause the heater to come on. If that doesn't work you may have problems with heater or thermostat. If it a programable t-stat I will need more information,such as name brand,model,etc. Hope this helps. Thanks.

Nov 05, 2010 | Air Conditioners

1 Answer

High low fan motor


Your main concern is the temperature difference across the indoor coil for both heating and cooling. When you turn your thermostat from auto to on, you are on high speed.

If you have long duct runs and little return air registers then high speed
would help cool the house better. However in the heating mode, you
could lose up to 10degrees by having the high speed setting.

What they installed is sized for your house and the speeds should not have to be changed unless the ductwork is not sized right for the house.
Cooling should be High-Black wire.
Heating should be Low-Red Wire.

400cfm equals a ton of cooling= 1200 sq. foot, For cooling you need
High speed. For heating it is whatever the temperature rise across the
coil is, which is located on the furnace/air handler.

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1 Answer

What is the procedure to use air conditioner?


CLOSE WINDOWS   SET STAT TO 75   FAN IN AUTO    HEAT COOL SWITCH TO COOL  WAIT FOR DELAY IF YOU HAVE DIGTAL TSTAT. DO NOT SHORT CYCLE . SET IT AND GO.

Apr 20, 2010 | Air Conditioners

1 Answer

I have an evaportating cooler omega it only works on fan.


I would have the unit looked at. The auto section on the motor is turned on by the cooler automatically so there seems to be a problem there at that switch.

Good Luck on your repairs hope this helped some

Dave

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2 Answers

What do the controls on a portabel AC mean. Like the mode button.


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Oct 07, 2009 | Air Conditioners

1 Answer

Our thermostat is set at hold with the fan on auto. The house and cool temp is set at 75 degrees, yet the fan will stay on CONTINUOUSLY unless I manually take down the temperature OR the outside temp falls...


it is ok to run your fan continously. constant air filtering as long as it pauses before a/c cycles on. will not use any more electricity than a toaster. is there a fan programing feature on t-stat. if so you will need to turn programing to fan off

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1 Answer

Thermostat problems


Have you confirmed that the thermostat is programmed correctly?

Did the thermostat ever control the temperature of the house properly?

When you indicate "kick", are you talking about flipping the Auto-On switch back and forth? The Auto-On switch only controls the fan, and no heating or cooling (Auto - fan runs on call for heat or cool, On- fan runs all the time.).

If "kick" means making the heating work, and if you have the same problem for making the cooling work, chances are good you have bad thermostat.

If the problem only occurs with the heating, and cooling works fine, then the problem could be in the controller board of the furnace, assuming you have a more recent (1990's or newer) furnace.

Jan 16, 2009 | Air Conditioners

1 Answer

Soleus KFGHP-09-ID Mini Split


This is normal operation for these styles of minisplits. The thermostat is not in the remote but is located on the return air of the indoor coil, so the air needs to be flowing in order for the thermostat to measure the rooms temperature. Set your fan speed to auto and the fan will slow down when setpoint tempurature is met.

Phil Hodges,
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