Rank: Member
Groups: Registered
Joined: 12/3/2009(UTC)
Posts: 4
|
I am having an issue with the freezer fan. SOmetimes the fan seems stop. I have defrosted the compressor and the thermostat and the unit appears to run properly after recyling the defrost timer. Timer seems to cycle properly and when fan is run both freezer and frig are operating at proper temps. I have read some that on this unit that the fan may be controled by the thermostat and then it the does not close properly it will not start the fan when it cycles. Would someone have any ideas or confirm that it could be the thermostat. I will order the parts needed tonight.
Thanks Much !
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 11/3/2009(UTC)
Posts: 30
|
yes it could be the defrost thermostat located on the coil but most likely the defrost heater would not be funtioning properly either. do you have trouble with the coil freezing up? an easy way to tell if the fan operates through the def. thermostat is if there are more than two wires conected to it then the fan goes through it
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 12/3/2009(UTC)
Posts: 4
|
Yes, The a wire goes to the thermostat and then to the fan. I have also read someone moisture in the connectors may cause problems also. BUt I a leaning more towards the thermostat. When it fan does stop there has been some frost on the upper section. But like tonight I put the defrost timer onto that cycle for a while and then turn it start and the fan does start. I do appreciate all of your feedback.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 11/3/2009(UTC)
Posts: 30
|
something else to consider....that switch is designed to be closed at about 28 degrees and below if memory serves me right so think about this.
when the refrigerator is running the coil is at about -5 to - 20 degrees and the switch is closed. when the unit goes into defrost the switch remains closed while te defrost cycle runs. wen the coil reaches 28 and above the switch opens and causes the defrost cycle to terminate, thereby opening the circuit to the fan. so now the fan will not operate until the coil gets below 28 again. the unit wont come on until the defrost cycle times out in the defrost timer, so now the coil may be as high as 50 degrees. Now the fridge has to run for a short while before the coil gets below 28. until that tine the fan cannot come on because the coil is above 28. when it goes below 28, the switch closes and the fan comes back on. I believe the switch is bad, becaus it goes into defrost, proving that it is closed, and also the fan does not want to come back on after defrost, proving that it opens, but......it is taking too much time to close back after defrost.
My money is on it being bad. Change it and I bet it works, just remember that it still wont come on as soon as the compressor comes on...the coil still has to be under 28 for the fan to come on. I think the way it is now that the fan is not coming on til it gets about 10 degrees. Let me know if this works.
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
|
Without a meter to check things, you problem is hard to diagnose. I would remove the evaporator fan and motor and with a "cheater" cord plug it into a 115 volt source to see if it is intermittant.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 11/3/2009(UTC)
Posts: 30
|
if you do use a "cheater" cord as richappy has stated, besure that the motor is a 115v motor. on a few units, mostly electronic models, the evaporator motor is a dc low voltage motor. just be careful.
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
|
That motor is a 115 volt unit, I checked before. Most of the time, motor problems are due to bad bearings, just check and run the motor in the position it was in the freezer, horizontal or vertical.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 11/3/2009(UTC)
Posts: 30
|
change defrost thermostat
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 12/3/2009(UTC)
Posts: 4
|
I have the thermostat switch on order. Should be here tuesday or wednesday. Will let you know how it turn out.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 12/3/2009(UTC)
Posts: 4
|
I have replaced the thermostat and it has been working as it should for the last 6 days. I appreciated all the assistance that you have given. Thanks Much !
|
|
|
|
|
|
Forum Jump
You can post new topics in this forum.
You can reply to topics in this forum.
You can delete your posts in this forum.
You can edit your posts in this forum.
You cannot create polls in this forum.
You can vote in polls in this forum.
Important Information:
The AppliancePartsPros.com uses cookies. By continuing to browse this site, you are agreeing to our use of cookies.
More Details
Close
