Sometimes during oven use the broiler will come on and stay on. Nothing will shut it off. Nothing has an effect on it other that hitting the breaker. This doesn't happen all the time but when it does you have to kill the breaker. There are no indicators lights at all, only a glowing broiler element. All the other elements will come on and go off normally when this is occurring. The breaker has to be off long enough for everything to cool down to room temp. Then things go back to normal. Can't seem to find a schematic anywhere to figure this out.
I would suspect that your broil relay on your Electronic Oven Control board is occasionally sticking. This can be a potential fire hazard if gone unchecked. Especially if this occurs randomly as you have mentioned. I would not feel safe about leaving your range plugged in while not at home, or while asleep. Most major appliances come equipped with schematic drawings and wiring diagrams as part of a tech sheet. One should be located either on the back of the range, or inside the console. The board, however is not normally a serviceable item and will probably have to be replaced. Just a heads up, the part number is 255451 and costs about $200. I hope you find this information helpful. Good luck to you and post back with any comments, questions, or concerns.
The oven temperature sensor (or oven probe) you mention, if defective, would affect the operation of BOTH oven features. This would usually cause long preheat times, an oven that never reaches the proper operating temperature, or an oven that can't maintain the proper temperature. More than likely your suspicions are correct and you have another Electronic Oven Control (EOC) board with a problem. You may try cleaning the board contacts with a pencil eraser and alcohol. It may sound unusual but this is what you do:
1. Unplug the stove.
2. Remove the operator console back panel.
3. Disconnect the terminal connectors from the EOC and remove the board for better access to the contacts.
4. Take a pencil eraser and clean each board contact where the wire terminal plugs in. The eraser is abrasive enough the remove any oxidation or corrosion, but will not damage the board.
5. The rubber eraser can leave a residue, however, so use alcohol with a cotton swab to clean.
6. Reconnect the EOC and all wire connectors.
NOTE: Double check the tightness of each wire lug. If the lug fits loose on the terminal, take a pair of needle-nose pliers and lightly crimp the connector, so it fits tight.
You may have a simple matter of poor connectivity. Try this option first to see if you can save yourself the cost of purchasing a new EOC. If the problem fails to go away, you may have to purchase a new EOC. The cheapest web source I could find a NEW board for you was repairclinic.com for $192. Let's hope you don't have to purchase a new one.
If you have questions, please let me know. I hope you find this helpful.
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I evidently have multiple problems. I replaced the control board and it seems to have fixed the broiler problem but now the bottom element won't turn off when the oven reaches the temp the knob is set at. This happens 10% of the time. Even if I turn the control to the off position it still radiates. Almost sounds like the same problem only with the other relay sticking. Could it be a temp sensor or possibly a faulty control board. I did get a reconditioned one from Sears. Saved me 100 bucks but now maybe not.
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