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After replacing all known parts to cause erratic freezing (heater,
defrost timer, cold control + ice rotator motor ) and another service
call for additional adjustment. I still have erratic freezing cycles.
Last night the freezer was sweating, ice cream soft, ice in box
frozen over (had to hit w/ tack hammer to get loose enough to
put ice in glasses. This morning freezer was cold again.
I had this problem last year. I unplugged the the refrigerator and plugged it in an hour later it worked for a little while then quit over night. I finally called a sears repair they came 2 weeks later it was the motherboard, could have fixed it myself, what a hassle. Thankfully I have a fridge in the basement. Still this is a do it yourself.
Well, if the service person said the defroster is not the problem, there must be a good reason. But, I would go with a faulty defrosting system. Most likely suspects are the defrost timer and the defrost heating element.
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The fridge gets its cold air from the freezer through a vent(damper)
between the freezer and fridge.The fan in the freezer blows air through it.
Make sure this fan is running. You may have to hold the door switch in for it
to run. There is a flap you adjust with
the fridge temp. control. Make sure it's opening and closing when you adjust
the fridge temp. The problem could be the electronic control if
you have one or the mechanical linkages.
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air and eventually affect the freezer too.
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer
again till everything starts back up to end the defrost cycle.
How to check
parts http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php
The fridge gets its cold air from the freezer through a vent(damper)
between the freezer and fridge.The fan in the freezer blows air through
it.There is a flap you adjust with the
fridge temp. control. Make sure it's opening and closing when you adjust the
fridge temp ..
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air and eventually affect the freezer too.
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air and eventually affect the freezer too.
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
How to check
everything http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php
How to check
everything http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air and eventually affect the freezer too.
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
How to check
everything http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
How to check
everything http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air and eventually affect the freezer too.
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control. http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php
Hi. the Defrost timer assembly has failed. simply replacing this timer will fix the defrosting issue.
Concerning the refrigerators cold control. this is caused by a malfunctioning Temperature control assembly. simply replacing this device will fix the erratic cold control.
Now, i would inspect the compressor for its operational value before purchasing a temperature control assembly. If the compressor isn't cycling on and off and if it is making a very loud noise or pinging, this will confirmcompressorfailure. you will have to replace the compressor in this case.
If the compressor is coming on in a cycle and powering off without any abnormal noises, this will confirm temperaturecontrolfailure. replace the temp control assembly in this case.
I will post the parts need below so that you may order the affected parts on line if you choose.
Check to see if there is any frost buildup in
the back wall of the freezer. If so, it is not defrosting as it should.
possible causes:
bad defrost timer/control board
bad defrost heater (in freezer)
bad thermo switch in freezer
If you don’t know what these are then unplug the machine and let the ice
melt in the freezer overnight with the door open. Then try it the next day, if
is cooling fine then you need to have a service person replace one of the above
items.
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