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Noticed first ac compressor would only work on on high cool, then now blower will not shut off even when unit is turned off...until unplug...and no a/c at all now....when plug back in, blower comes on again and motor speed is eratic and it smells like something electrical is arcing or shorting out inside

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You should not use the unit if it smell like a electrical problems. it could be your indoor circuit board you could take it out if you realy wanted to make sure its unpluged and see if there is any loose cables check if the fan free spins and does not feel stiff

Posted on Nov 10, 2010

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Posted on Jan 02, 2017

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2 Answers

Trouble with ac on a 2008 pet cruiser turbo. Please read carefully. Ac works fine first time it is used for the day after that not working. Checked the low pressure and charge and both are good.


Check out your thermostat - it is wired in series with low pressure switch and if is open clutch will not activate and the compressor will not run.

Sep 20, 2017 | AC Cars & Trucks

2 Answers

2002 4 ton Bryant air conditioner shuts off, fan still runs but not cooling is problem in the controls in the attic or in the AC unit or both?


With a non heat pump it is a simple 24 volt AC control circuit. In the attic there is a relay that is actuated via the fan control wire directly from the thermostat. On the thermostat there is an auto/man switch that controls the fan. Manual the fan runs all the time. Auto fan turns on and off with the outside compressor.

If the system is not calling for cool and the fan continues to run the fan relay is sticking. common problem. Sometimes after running for several days the relay will stop sticking if not, replace relay.

If the system is calling for cool and the compressor stops I would still expect the fan to run until thermostat tells the A/C to off. Some compressor units include a safety switch or high-pressure cut-out switch A blocked internal valve bad control board or external fan in outside unit defective no air flow in outside unit.
High pressure cut out not good,

Suggest turning temp max cool and observe. If acceptable cool and the compressor runs without interruption all is good, except for the blower in the attic. Safely check relay in attic blower circuit.

Hope this helps.

thermostat-heat-cool-fan-on-czwsw2ci0layswcsyy3dj4dr-4-2.jpg

basic-thermostat-wiring-diagram-czwsw2ci0layswcsyy3dj4dr-4-5.jpg

Jun 28, 2017 | Bryant Heating & Cooling

1 Answer

Lost blower motor and A/C compressor at same time, the 60amp fuse in distribution box is good, was adding frefrigerant to system then noticed compressor not running and no blower MTR either


you have probably put in too much gas and the compressor has shut down due to the high head pressure switch activation
ac systems only have a set amount of gas required to operate and more is not better
if you had to add gas then there is a leak in the system
most systems need the blower to be switched on to operate the ac compressor , check the blower fuse as it is separate to the 60 amp fuse
have an accredited ac specialist shop check the ac for leaks and correct pressure

Aug 31, 2015 | Cars & Trucks

1 Answer

At night its shuts down when the therm is satisfied,but trys to restart right away and when it does start it shuts down right away and just keeps doing this


The thermostat has a differential built into the temperature sensing operation. The differential is normally a degree or more. If the stat shuts down at 72 degrees it should not start the unit again until the temperature in the room reaches 73. If the AC runs and cools properly until it shuts down, I would check the thermostat. The AC can not restart immediately after it shuts off because the pressures in the system are too high at the compressor. It takes a few minutes for the pressures equalize allowing the compressor to start. If the stat tells the unit to start under high pressure, the compressor will shut down on overload. It will start and run after the pressure falls enough for the compressor motor to run.

Jun 04, 2015 | Dometic Rooftop RV Air Conditioner

1 Answer

Ac unit runs, inside blower shuts off after 2 mins, compressor continues to run, t-stat still calling for cool


My central AC unit decided to stop on the hottest day of the year. It would start and run normally for a few minutes and then the blower would shut off. After checking the breakers, thermostat and overflow shut off (did not have one) I saw something about a blower motor capacitor. This was easy to get to and replace and my last hope before waiting for someone to come fix it. The capacitor cost $4.04 with tax and had my AC working again. Needless to say I was beyond happy. I hope this can help others with a similar problem.

May 20, 2012 | Heating & Cooling

2 Answers

Cooling begins then indoor blower stops...outside unit continues to run


I had the same problem,if you do not monitor that you will make matters worst and burn the Compressor.your problem is the blower unit it has three speed sometimes four.it needs to be changed..

May 20, 2012 | Heating & Cooling

1 Answer

Ac cools camper fan blower turns off compressor


hi there,
ac not cycling off,the thermostat is not working
have to replace a new one.havve anice day fix my rate thanks

May 14, 2010 | Dometic Rooftop RV Air Conditioner

3 Answers

Inside blower not starting every time


That's a weird problem. I wonder if the outside compressor is drawing down the voltage in the breaker box enuff to keep the blower from starting up. If you're set to cool but the thermostat is NOT calling for the AC, can you manually turn the blower on fathfully? If so, I would check all wiring connections in the breaker box to make sure they are tight and free from tarnish or corrosion. You may even need to contact your power company and have a higher amperage line installed outside. Do your house lights blink noticably when the compressor kicks on?

While you're resolving this, you could start the blower manually and just leave it on. The compressor cycling on/off shouldn't stop the blower once it's running and it won't draw much current... couple bucks a month maybe.

Hope that helps...

Geno

Apr 04, 2008 | Goodman CKL24AR24 Air Conditioner

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