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Oven Preheats well, but won't maintain temp Options  Email this topic  Watch this topic  Print this topic » Normal Threaded
Model: J BP78G S2BB	Brand: GE	Age: More than 10 years
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craigdblom		#1 Posted : Sunday, December 14, 2008 6:38:26 PM(UTC) Quote Multi-Quote
Rank: Member Groups: Registered Joined: 12/14/2008(UTC) Posts: 4		My GE electric oven (model # J BP78G S2BB) will preheat perfectly, but the temperature drops steadily without reheating to maintain temperature. If I turn the oven off every few minutes, then reset the temp dial, it will keep baking (the heating elements will produce heat until the proper temperature is reached). If I don't keep doing this the oven just steadily cools. I have a medium amount of electrical knowledge. I can do some basic stuff with a volt-ohm meter. I am trying to decide whether to attempt a repair myself, or just buy a new oven/range. I don't want to end up replacing all the possible problem parts then also end up paying as much as purchasing a new oven. Similarly, I suspect that paying a repairman to come out and fix it will cost a significant percentage of a brand new appliance. I was hoping it would be something as simple as replacing a relay - but I'm not sure this oven uses one to regulate the temperature. Anyone willing to help me take this on?
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Gene		#2 Posted : Monday, December 15, 2008 7:53:14 PM(UTC) Quote Multi-Quote
Rank: Advanced Member Groups: Senior Expert, Administrators Joined: 7/19/2007(UTC) Posts: 27,455 Was thanked: 4 time(s) in 4 post(s)		Most likely the problem is a bad control board which has to be replaced together with the face plate according to the manufacturer instructions. - The part number for the control board is AP2026779 - The part number for the face plate is AP2025969 Gene.
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craigdblom		#3 Posted : Tuesday, December 16, 2008 4:22:57 AM(UTC) Quote Multi-Quote
Rank: Member Groups: Registered Joined: 12/14/2008(UTC) Posts: 4		First I want to say thanks very much for the help. Is there a way I can test the control board to be sure that is the problem before I replace the parts? AND Are there other likely causes if that doesn't do the job?
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craigdblom		#4 Posted : Tuesday, December 16, 2008 4:27:30 AM(UTC) Quote Multi-Quote
Rank: Member Groups: Registered Joined: 12/14/2008(UTC) Posts: 4		First I want to say thanks very much for the help. Is there a way I can test the control board to be sure that is the problem before I replace the parts? AND Are there other likely causes if that doesn't do the job?
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Gene		#5 Posted : Tuesday, December 16, 2008 6:49:23 PM(UTC) Quote Multi-Quote
Rank: Advanced Member Groups: Senior Expert, Administrators Joined: 7/19/2007(UTC) Posts: 27,455 Was thanked: 4 time(s) in 4 post(s)		I do no think it is possible to diagnose the electronic control board without very special equipment and the complete technical specifications. I do not see anything else what can cause such problem. Gene.
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craigdblom		#6 Posted : Tuesday, December 16, 2008 7:33:46 PM(UTC) Quote Multi-Quote
Rank: Member Groups: Registered Joined: 12/14/2008(UTC) Posts: 4		Thanks, Gene, for taking the time to help. Much appreciated.
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