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What could be the problem if the fan on outside unit starts and then kicks off after a minute.

This problem occurs if the unit is cold or hot.

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Look for timing in your remote maybe your entered a timing mode, if not you must see for coolant is the unit full of it or you have some holes in system an your unit run out of coolant who is a freon gas of course, if all of this is ok you have to change the transponder unit in your inside block because is out programmed , if srvice is doing a new reprograming of this block ok if not you have to replace it

Posted on May 10, 2014

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Posted on Jan 02, 2017

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Outside unit will only run for a short amount of time with A/C before the fan stops turning and starts humming, squealing/screeching and the top of the outside unit gets hot.


The bearings are bad in the motor and after the fan runs enough it eventually gets hot, making the bearing screech and the fan locks up. Need to replace motor again. See if it has a warranty. The reason it gets hot is because the fan is what removes the heat from the coil and if the fan isn't running there is nothing to cool it off so to speak.

Apr 19, 2016 | Heating & Cooling

1 Answer

Auto/On set to ON. Fan runs.


Sounds like the thermostat, the way to verify is to unplug indoor unit, remove thermostat, take pic of wiring with phone or label the wires as to the terminals. Carefully twist the yellow,(Y) Red (R) and the green (G) together. Plug the furnace back in, if the unit operates normally, replace the thermostat. I am basing this on the fact that the blower speed is changing. This could also be an anomaly within the circuit board in the furnace section, not likely though as the outside unit (condenser) is not controlled n by the indoor board unless this is a heat pump. hope this helps. D

Jul 21, 2015 | Dometic Rooftop RV Air Conditioner

1 Answer

Do I need a new control panel if my compressor kicks off every 2 to 3 minutes?


check the outside unit is clear and has lots of air flow, try cleaning the outside with a garden hose, most likely the compressor is cutting out because it is getting too hot.

Jul 19, 2015 | Heating & Cooling

1 Answer

Inside fan turns on when outside unit is in defrost mode when heat is selected. This causes it to blow cold air for about 10 to 15 minutes prior to the outside fan starting.


The inside fan will run while the unit is in defrost. The electric heat strips should kick on to help prevent you from feeling this cold air. When the unit is in defrost it is essentially running in the A/C mode. You should make sure the electric heat elements are working then go from there.

Dec 11, 2010 | Goodman PHKJ048-1 Air Conditioner

1 Answer

I have a ten year old carrier heat pump unit. I recently replaced the indoor tstat. the outside contact and the transformer. Had a tech put freon in the unit also. I have to problems one is the airflow is...


Two things are the most likely culprit. First check ytour inside coil with the unit running for 10 minutes or more and see if the coil is sweating there should be water running off of it. Also after one hour is there ice forming on it. These problems are lack of air flow which is caused by restricted air flow caused by a dirty filter dirty coil (which you have already taken care of) or your blower motor may not be kicking into high speed. Your motor will start and then after it gets to a certain speed it switches to a high speed. After running only 15 minutes if your blower motor is hot to the touch. Be careful some will cook an egg. If it is hot not just warm it is bad and needs to be replaced. Also if the fan is not running properly you can not get reliable readings with your gauges when adding freon. So if this is the problem then you may have to have the units freon cked again. If the line is not sweating at the outside unit where it goes into the unit the freon pressure is not right. The larger copper line will be cold and sweating the small line will be hot to the touch when the system is balanced and running properly. I hope this helps

Aug 23, 2010 | Heating & Cooling

1 Answer

Fan doesn't run while in idle and begins to over heat until I start driving agin then it cools back down to normal. Also the fan runs when engine is off and drains the battery.


The fan is only supposed to come on when there is excess heat .. in normal driving conditions it doesn't start. When you start your car in the morning the fan won't come on because the engine is cold.

With a hot engine - and it depends how hot the engine is - the fan will only kick in to prevent overheating. In heavy slow moving traffic or a traffic jam, the fan will kick in if needed.

The air flow through the radiator is usually sufficient -in normal driving conditions - to cool the engine.

When you park up and the car has a hot engine, the fan will kick in. This is perfectly normal. It is caused by a surge of hot coolant triggering the fan sensor. Perfectly normal.

The fan then should cut out after a while .. maybe 2-3 minutes at the most. If the fan runs continuously that suggests a fault in the temperature sensor switch.

Next time - wait by the car and see how long it takes for the fan to quit after you have parked up. It should stop of its own accord after a couple of minutes.

If the fan cuts off after a short while, and your battery is becoming drained, that's probably a battery or alternator fault.

Remember: when you start the car the fan won't kick in at idle speed because the engine is COLD, and there is no reason for the fan to start up ..
The fan WILL kick in for a couple of minutes after you have parked the vehicle and the engine is hot

Aug 14, 2010 | 1999 Jeep Grand Cherokee

1 Answer

Rooftop RV Air Conditioner: temp outside 90 or above. compressor kicks off ....


It sounds like maybe an overload for the compressor is tripping and resetting once the compressor cools. Possibly due to a low charge.

May 03, 2010 | Heating & Cooling

2 Answers

I noticed some straining noise coming from my a/c unit today. The fan on top of the condenser runs fine but as soon as the compressor tries to kick on the fan stops for a split second and you get a kind of...


You amy ahave a bvad capacitor on the outside unit. It starts the fan and the compressor. You can change this yourself. Open the outside panel and you will see a silver canister with terminals out the top. Replace this and I think your problem will go away. On the cap. it will say something like 30uf 5uf 370 ot 440 Just get these numbers and get a new one. Russ

Aug 14, 2009 | Goodman CKL24AR24 Air Conditioner

1 Answer

Cooling problem


Since it is not so hot outside you may have to adjust the Thermostat to a lower setting to get the AC unit to kick on the compressor and blow out cold air. Give it a try, and if not the T-stat then we can go from there.

Jul 14, 2008 | Office Equipment & Supplies

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