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jreynolds  
#1 Posted : Tuesday, December 11, 2007 11:01:36 AM(UTC)
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jreynolds

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I have an electric convection oven, Amana, about 6-7yrs old. The broil element and broil functions work fine, as does the cooktop.

Bake function does not work, you can set temp for bake, hear a click or two, but not heat on the element. The element has continuity. After turning the oven to bake, I read 0 volts across the element terminals. I get 120V from each terminal to ground though. Any thoughts? Thank you.
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Gene  
#2 Posted : Tuesday, December 11, 2007 4:05:03 PM(UTC)
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Gene

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What did you read across both wires (at least one has to be disconnected from the bake element)?

Gene.
jreynolds  
#3 Posted : Friday, December 14, 2007 6:57:27 PM(UTC)
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jreynolds

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After pulling one of the leads off, one side is 0V to neutral the other is 120V. The 0V side can be traced back to a board in the lower RH side of the back of the oven, roughly 10" off the floor. Its contact on the board has 0V. I assume this is some form of relay board. The schematic is labeled Bake E11 is the where the wire contacts the board. Would this mean the board is bad?
Gene  
#4 Posted : Friday, December 14, 2007 8:30:22 PM(UTC)
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Gene

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Yes, the relay board is bad and it has to be replaced.

- The part number for the relay circuit board is AP3970410

Gene.
jreynolds  
#5 Posted : Friday, December 21, 2007 4:26:43 AM(UTC)
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jreynolds

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I tore into the oven again, and removed the board to inspect the solder on the relays, and all appeared good. I put the board back onto the mounts and decided to tap on the bake relay with the back of the screwdriver thinking it was hanging up. I tested the voltage again and 120V, and the element started to bake. We've used the oven a couple of times without any problems.

Did I get lucky, will this most likely happen again, and more importantly is there any safety concerns here? Thanks again for all you help
Gene  
#6 Posted : Friday, December 21, 2007 10:21:45 AM(UTC)
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Gene

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From my experience, it will happen again and, most likely, when you will need it the most.

As far as safety goes, there is a possibility that the bake relay will get stuck in the closed position causing your oven to get out of control.

I would recommend to replace the relay board as soon as possible.

Gene.
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