Ge WB27X10311 Electronic Control Board OEM Part

In 20-year-old GE Electric Range Model Model JBP78BY1BB, I replaced the electric control panel for oven. Original GE Part was WB27T10102. Appliance Parts Pro (APP) provided excellent help and directed me to the closest replacement, which was GE Part No. WB27X10311 with APP part no. AP263445. APP's postings of the comments of several other customers who had experienced the same failure (broiler burner will not shut off) were very helpful. The replacement part proved to be a correct electrical replacement, but two differences were observed and had to be accommodated: (1) The range's black wire had to be connected to the location on the replacement control panel marked for the red wire. (Red and black wires, which are each 120 VAC away from the neutral, are interchangeable on a 240 VAC service.) (2) The neutral connector from the range had a plastic insulator on it that was too bulky to enable connecting it to the neutral terminal on the replacement electronic control panel. The insulator dimensions had to be adjusted to enable connection. The schematic wiring diagram packed into this range by GE was very helpful. So was the small wiring diagram packed with the replacement electronic control panel. An examination of the removed failed electronic control panel showed that the contacts on the oven relays (one for the broiler element and one for the bake element) had not welded, so that was not the cause. Such welding is a possible cause of this particular type of failure, as shown in GE owner's manual for this electric range. I contacted GE and offered to send the failed electronic control panel in for identification of its failure mode, because this failure mode is so serious. GE declined my offer.

Replaced electronic control board much to my wife's dismay - she wanted a new range. It was a compatible board but not a perfect drop-in based on some wiring differences. The new board came with a brief schematic that may it extremely easy to connect it correctly. And it even came in the mail in less than 72 hours using the lowest shipping rate.

Changed the electronic control board.

Replaced the control board.

This is a GE range, acquired in 1997. First noted that it was taking way too long for the oven to pre-heat to the set temperature. In troubleshooting, noted no current was flowing through the baking element of the range. Checked baking element's continuity with an ohmmeter and found it to be intact. Next checked voltages from the control board's contacts that are supposed to feed power to both the baking and broiling elements. Noted 240v available at the broiling element contact but none at the broiling element contact. Diagnosed control board. Ordered replacement from ApplianceParts Pros.com. Replaced the control board with a new one acquired from AppliancePartsPros.com. Problem solved.