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Customer Questions and Answers for Main Power Brd by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM11378226
Manufacturer Part Number: WB27T10551

Questions & Answers

For Ge Main Power Brd (Part Number: OEM11378226)

Edward2 for Model Number JT980SOH1SS

I have a GE Profile double wall mount overn - Tri-vection - Model JT980SOH1SS. the other day we noticed the display was completely blank and it would not respond to any touch. The only thing that was operational was the lower oven light. After checking for proper AC I looked over the electronic boards and I noticed the main power board had a SINGLE component blown apart. The part is labeled U2 and that part number is TOC247YN which I believe is some sort of high power switching MOSFET. Does anyone know what may have caused this part to blow apart? I looked over the other circuit control boards and could not find anything else that looked burnt or out of the ordinary. I also plugged the oven back into AC without the main power board. I then checked the AC coming in on the connector cable leading to the main power board and all seemed ok.

1 Answer

Edward, We aren't able to assist you or make recommendations, other than basic checks to the wiring and components. AppliancePartsPros.com, as well as other servicers or parts distributors don't have access to printed circuit board blue prints or diagram/schematics, those are proprietary information for/by the manufacturers. We can recommend you trace the circuit tracers and determine what circuit was involved, check the wiring and components in the circuit, and replace the appropriate part(s). Thanks,

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Craig for Model Number 980SK1SS

I have a GE Trivection Oven. By all accounts, the MPB needed replaced(front display dead, lower oven light would illuminate). So, I ordered the replacement part, WB27T10551 and installed it. Upon doing so, the front panel illuminates and seems to activate the appropriate functions as evidenced by relay audible sounds. However, the heating elements will not activate. I checked several voltages as recommend by the document that came with the oven. It would seem the relays are not being fed power. I checked all the way back to one of the wiring harnesses and found there to be no voltage at the four prong plug which feeds K11 and K7 relays. Upon probing the mains side of this plug, the new MPB seems to have failed as there is now no front panel display and the lower oven light will work. Does this make sense?

1 Answer

Craig, It is possible that you have received a defective control board and would need to get a replacement board.

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1 Answer

Hello Wesley. No, just try out the unit and make sure it is working properly. If so, then you will need to install the wall oven into the unit.

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1 Answer

Hello Suzi. The buttons are controlled by the front panel. If they are still non responsive, you may want to look at the way the ribbon cable is connected to the control board in the unit. If it is not correct, the buttons will not work properly.

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1 Answer

Suzi, The units keypad not working correctly will be caused by a bad keypad which the control panel WB27T10565 would need to be replaced.

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1 Answer

John, There are hooks at the top of the control panel and when you pull the bottom out a little you will then push straight up to release from the hooks.

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1 Answer

Hello Charles. It is a little low on the voltage. Check the terminal block in the unit and see if it is bad.

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1 Answer

Hello Anoush, You may want to check your connections from the touch pad to the main control. Normally it is the touch pad that goes bad when it is a problem with touch pad WB29T10062. You would also normally get an error code that would come up which would make it easier to determine what has failed.

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