Rank: Member
Groups: Registered
Joined: 3/18/2008(UTC)
Posts: 2
|
Both refrogerator and freezer sections went warm. Repairman stated that the motherboard had to be replaced, and upon doing so, advised that since the compressor would not start up, the inverter board was bad. Is there a way to diagnose the failure of an inverter board? I'm not too many parts away from a new refrigerator.
|
|
|
|
|
|
Rank: Advanced Member
Groups: Expert
Joined: 2/16/2008(UTC)
Posts: 79
|
if he was wrong, you shouldn't have to pay... that's the way i work it. if you need another part he should put the part in for cost, or give your money back for the motherboard that didn't work, (and may not have been bad)
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 3/18/2008(UTC)
Posts: 2
|
Roy, thanks. He did not charge, but if he changes out the Inverter, will charge for both parts and labor, $1,000! I do not have a wiring diagram, but do you know if the inverter has anything to do with starting the compressor?
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 10/20/2009(UTC)
Posts: 9
|
In most cases with the GE refrigerator, the problem in the disc in the compressor start relay. I have had them go bad on 2 of my fridges.
Gary
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
|
From the parts breakdown, the overload and start relay are in the inverter, is this correct? Makes no sense as this would provide no thermal overload protection.
|
|
|
|
|
|
Rank: Member
Groups: Registered
Joined: 10/20/2009(UTC)
Posts: 9
|
The part that probably went bad is the "PTC /Overload / Relay" which are all the components of the compressor start relay. If you remove the part and shake it, you will probably hear the broken pieces of the PTC disc. All you need to purchase is the section with the disc.
It's also a good idea to have a spare on hand. The disc only lasts several years. When the disc is starting to go bad, the refrig will have hard starts and shutsowns.
Gary
|
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
|
The compressor start device is in the inverter, and the motherboard controls defrost and evaporator and condenser fan motors. Seems like you will need a new inverter board. Any problems with the motherboard can be diagnosed once you get the compressor running.
|
|
|
|
|
|
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)
|
|
THIS FORUM IS DEAD!!!!!!! |
|
|
|
|
|
Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
|
Denman:
I suspect the compressor runs on a 12 volt, variable frequency square wave.
If so, the compressor could be tested (assuming 60 Hz. is a runnable frequency) with a 12 volt transformer and a manual compressor test box. The unit will draw about ten amps, assuming a 1/5 HP compressor. Current draw over nameplate rating would be a bad compressor.
This would save blowing out a new inverter. Of course, the start and run windings could be determined with accurate, digital ohmeter.
Another idea would be adding a overload klixon to the common terminal, but this assumes the klixon will trip before the inverter power transistors/fet's fail. This just might work
|
|
|
|
|
|
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
