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AirTempB2T8F7A wall airconditioner,fan works but compressor not!

Compressor makes a sound or hum,but does not run. It has a YORK 30/4MFD 370VAC capassitor #16050071D-138 SFS37304A14 60Hz, could this be the problem? what should I exspect to pay for new capassitor? Is there a way to check the old capacitor, I hav removed It To possibly purchase a hew one. Note was working fine and the next time we tried to use it it would not cool. Thanks................................Ps if we were to install a new capacitor, is there a start up proceedure, such as wait a few minutes to allow the capacitor to charge before starting the cooling cycle.

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Just install the new one and there is no start up procedure -------- when you get the new one ask if there is a stronger one or a hard start kit capacitor -------- that will give it a little stronger bump to kick the motor over

Posted on Jun 25, 2009


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Coleman Mach RV Airconditioner ? Compressor comes on but hum isn't quite rite. The T-stat doesn't make a click when adjusted either. Kids turned it down and back up too quick n blew something or is...

under the shroud there is a circuit board it has a fuse on it called F-1 this fuse starts the compressor through the thermostat.
the sound you are mistaking for the compressor is the AC fan
yes you can jump the thermostat as it only has 12 volts on the wires
if you start capacitor was bad it would be buldged on the top of it's can and, probably leaking electrolyte

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Window a/c compressor runs. fan hums but does not run

Replace the fan. The bearing is worn and it may need a new capacitor.

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My Maytag MFD2560HES bottom fridge is making a loud humming noise.

Any time there is the sound of humming it is important to locate where the noise is coming from. Sometimes fans wear to a point that at one speed the sound as if humming. Sometimes compressors hum with more catastrophic results. Because your model is a bottom freezer it would be a good idea to open drawer to freezer and see if the sound is from fan in freezer or if pulled away from wall is the sound the fan or compressor area? I believe I will be able to locate a service manual but I will need you to help me pinpoint the location of the loud sound so we can get the sounds back to normal. Let me know if you are able to try that and what you find, Sea Breeze

Mar 23, 2010 | Maytag MFD2560HES Bottom Freezer French...

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Both fridge / freezer are not cooling down. It sounds like the motors are not working.But there is power going in. Also there is a small humming engine noise.

Are you sure the humming noise is from the compressor motor being locked up? It is normal for the compressor motor to make a humming noise when it runs. Make sure the fan in the freezer is also running while the compressor motor is running and replace it if necessary.

You need to defrost the coils in the back of your freezer. You can do this the slow, easy way by simply unplugging the refrigerator for 24 hours. Leave the doors open to ensure everything has the chance to melt.

The fast way to defrost the coils is to turn off the refrigerator and remove the rear panel from the freezer compartment. You will see the evaporator coil completely frozen with ice. Thaw the ice with a hair dryer and make sure you thaw the drain at the bottom of the back wall as well.

When you turn replace the freezer panel and turn the refrigerator back on, it will get cold again.

Mar 06, 2010 | Electrolux Refrigerators

1 Answer

The compressor fan does not spin and sometimes it spins backwards

Your capacitor is definitely the culprit here.
It should be a dual capacitor. Meaning it has 3 terminals on one capacitor. "C" "H" and "F" would be the markings for power in,"C" out to fan "F" and out to compressor "H".
It also has a mfd(microfarad) value on the capacitor as well as a VAC rating of 370 or 440 volts ac. A 440 VAC can be used in place of a 370vac.
The other specs may be something like 40/5 or 35/5 or 40/7.5 etc.
The capacitor replacement should be exact as far as the microfarad rating is concerned.( eg. 40+5).
The money requested through various sites is just that....various. These dual caps may sell around 30-50 dollars for a quality capacitor. If you wish to spend the $118 I will sell you all as many as you would like.

Sep 06, 2009 | Heating & Cooling

3 Answers

Amana refrigerators is not staying cold and freezer is not freezing. Makes a "humming" sound, on and off, like a low "grind" noise, or like the noise an airconditioner makes prior to kicking on.

Mine had the same problem, and I had a tech out today who determined it's the motor inside the freezer. It's (the fan) not running. It's a $100 part, but if your refrigerator is new enough, it's probably worth the investment to go ahead and have it fixed.

Jul 29, 2009 | Amana ABB1927DE Bottom Freezer...

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I have a 10 yr old Maytag side-by-side. Came home the other night and the Freezer was at 40F. What is the most likely problem

to start: make sure refrig is turned on and running. you hear the fan blowing inside the frzr compartment?
2.pull refrig out and listen for compressor running. is compressor running/humming away or are you hearing a humming sound followed by a clicking sound?if you hearing a clicking sound than mostly
is your relay on the compressor that went out. look for a smal device on the side of compressor w/two or three wires. part# 12002794 $32.00

also make sure there's no frost build on frzr rear wall.that's another problem

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The fan runs constantly. The compressor starts,

Check the compressor run capacitor first.

Jun 21, 2009 | Kenmore 53701 Dehumidifier

1 Answer


Ifs its a small humming sound,then its the contactor pulling in. But if it a loud humming sound then its the compressor kicking in. and the fans not, try to take something long and turn the blades on the fan, if it takes off and run then your capacitor is shot or swollen at the top,which was cause by power surge. Take-off and replace with the same mfd. writings ,on the outside of can. Also check for blown fuses or tripped breaker . the fuses should be in the disconnect box on the wall, or the breaker in the breaker box.. Older house has fuses instead of a breaker box!

Sep 01, 2008 | Bryant Heating & Cooling

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