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CU-D50DBH8 UNIT NOT RUNNING

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The unit is not cooling down.


is the unit running? are the fans running? if the fans are running then check to see if the comp is running. If the comp is running you have a more serious issue. if its not or nothing is running im suspecting a control issue

Aug 14, 2013 | Summit Commercial Summit Professional Wine...

2 Answers

My A/C freezing its coils, while the fans keep running. The AC unit (outside) keep running and never stop caused the coils freezing. It doesn't matter when I turn off or set it to Cool position, the...


Sounds like the contactor in the condensing unit is stuck. That is why it will not turn off when the thermostat is satisfied. If the inside air handler is not blowing and the outside condensing unit is running, then this will cause the inside coils to freeze up rather quickly.
The contactor is located in the outside condensing uni in the electrical compartment.
If it is sticking it will need to be replaced.

Sep 07, 2011 | Heating & Cooling

1 Answer

Unit for downstairs is running fine, but upstairs unit doesn't want to kick on, but outside unit is running (fairly hot though). Tried to re-set, but "cool" just sits there and flashes on the...


Are you saying you have two HVAC systems or one? If you have two indoor units, you must have two outdoor units. Which outdoor unit is running. You said it is running hot. Assume the fan in running to cool the condenser. If so it should be about 20 degrees warmer than outdoor air. If not maybe you have a dirty condenser coil. Need more information.

Aug 26, 2011 | Carrier 38CKC036 Air Conditioner

1 Answer

Can't lower cooling temp


Is you indoor fan running? Is the out door unit running? (Condensing Unit) If both are true, is the larger of the two copper lines on the Condensing Unit colder than the smaller one? If not, is the compressor in the Condensing Unit running? The compressor is the big can under the fan in the Condensing Unit. Please reply to this as you may need a service tech. at this point.

Apr 01, 2011 | Heating & Cooling

1 Answer

My air conditioner has stop working its blowing air inside but the fan is not spinning outside .....


If the fan is not running is the compressor not running also...if neither is running the possible reasons are 1..no power to outside unit...2..bad contactor on outside unit.is this buzzing if it is this indicates no power...3 bad capacitor,do both compressor and fan humm then quit humming and hum some more...4 high pressure switch has shut unit down because fan wasnt running if compressor was running but not fan....if your unit has this there will be a manual reset button where the lines come out of unit...if compressor was running and fan was not...1 bad fan...2 bad capacitor.. if you do not have any electrical knowhow i would recommend calling a hvac tech to come and fix unit...Thanks

Feb 01, 2011 | Samsung AS18A6RB Air Conditioner

1 Answer

Hi, I have a goldStar GA 1866VHR split Airconditioner, (5050w cooling and 5040w heating capacity). Today I noticed that compressor/condenser unit was still running after I turned off the aircond: from the...


Thanks for your detailed information. But solution is very simple. The compressor contactor in out door unit. Struck. And hence, when you power on, without indoor commanding, the out door starts running.

Replace same type Contactor relay (In out door unit) immediately. Hope, it's helpful.

Jan 19, 2011 | Heating & Cooling

1 Answer

Will Not Heat


On the outdoor unit the fan should not be running, on the indoor unit the fan should be running. If you then check the outdoor unit with fan not running, you should be able to hear clearly that the compressor is actually working. If this is all correct, it is possible that your fourway reverse valve is seeping and needs to be replaced.

Apr 15, 2009 | Fujitsu 18R1 Air Conditioner

2 Answers

Gas Package Unit Keeps Running with all T- stat wires unpluged at the unit?


does that unit run heating or just the fan run? if just the fan you may have a bad fan thermostat

Oct 21, 2008 | Goodman CLQ36AR49 Air Conditioner

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