Amana bb20 stopped cooling 1 week after it started making a tinny transformer sound while running. This sound occurs about every 15 minutes. I unplugged the unit for a day and then vacumned all the dust from the coils and condenser, When I plugged it in after 24 hours it worked fine for about 6 hours and then it stopped cooling. The condenser fan works and the condenser is only warm to the touch.
Any suggestions?
SOURCE: amana 25. cu ft..freezer not working...making rattling noise now and then
Check the defrost timer, rotate it until a solid click is heard. If your unit starts to work replace that timer. Good Luck
SOURCE: Problem with Whirlpool side by side refrigerator
sounds like a defrost problem ...
maybe the heater or defrost thermostat is bad...
he should bypass the timer and jump the heater to see if its woking...if not then i would remove the heating element for further testing. if the heater checked ok..it would only leave the defrost timer to blame.
good luck
SOURCE: Amana SQD25VL coils cool, but deepfreeze fan does not engage
Sounds like a bad fan motor. Be sure power is getting to it.
SOURCE: refrigerator is not cooling
Good day,
You will need an ohm meter to check the parts.
Your defrost system has failed.
It is made up of 3 components, 2 of which are located behind the rear panel in the freezer compartment.
Remove the rear panel. There is a cooling coil, that has a calrod heating element that runs along it's bottom. As well there is a defrost thermostat ( a small round 1" disk) which is located on the top of the same coil. Both should be checked with an ohm meter to test for continuity. The heater should read no more than 30 ohms, the thermostat ( IT MUST STILL BE COLD BELOW 30 DEGREES) should read zero ohms. Note: The heater rarely fails, the thermostat has a high failure rate.
The third item is a timer, or a solid state adaptive defrost control. Depending on age, and model, it is located , behind the kick plate on the bottom front.
Or, in the fresh food compartment on the roof.
If it is a timer, you can turn the timer shaft when the machine is running until the machine shuts off. With it still turned on, wait 40 minutes.
If the machine turns itself back on, the timer is O.K. if not, the timer is bad, and needs replaced.
If the Main heater checks O.K. and it has a solid state control, then replace the thermostat in the freezer compartment, and the solid state board.
Below is an excellant tutorial on defrost systems.
http://www.appliance411.com/faq/howdefrostworks.shtml
Thank you for using FixYa
152 views
Usually answered in minutes!
×