Rank: Member
Groups: Registered
Joined: 6/25/2010(UTC)
Posts: 7
|
The temp in the freezer will get up to 40 degrees when the freezer starts making the werid noise and then about 5-10 mins later when the noise stops the freezer will start dropping back down to 0 degrees. We have replaced the capacitor/relay switch serval times. We are thinking that it has something to do with the defrost on the freezer since it is going up in temp and then dropping back down. We have done all of the service checks in the service manual and everything seems to be fine. How can we tell if the defrost heater or the thermostat is bad?
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
|
You might have an intermittent evaporator motor. When it fails again, check to see what is not running.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 6/25/2010(UTC)
Posts: 7
|
The evap motor is working fine. When it is going up and down in temp there is a humming nosie comming from it. What else could be causing this?
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert
Joined: 2/29/2008(UTC)
Posts: 19,638
Thanks: 1 times
Was thanked: 11 time(s) in 11 post(s)
|
[COLOR="Blue"]We are thinking that it has something to do with the defrost on the freezer since it is going up in temp and then dropping back down.[/COLOR]
During defrost the evaporator fan, the compressor and the condenser fan should all be off. If this is the case when you get the temperature rise and the humming it may be that the defrost thermostat is not shutting the defrost heater off. Often you can see that they have bulged and need replacing.
Sometimes elements will vibrate (60 hertz hum).
Only way to tell is to remove the evaporator cover and see if you can isolate where the noise is coming from.
Odds are though when you remove the cover it will not hum for you. |
THIS FORUM IS DEAD!!!!!!! |
|
|
|
|
|
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
