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Hello,
I have an old A122 Jenn-Air cooktop, and the large heating element on the Black burners (there are also white plastic-top burners that are working) isn't working. I replaced the element to no avail.
I also swapped the wiring, so that the wires that were going to the small element now go to the large element. Still, the small element works (off the switch of the large element), and the large one doesn't. This has me totally baffled.
Can anybody help?
The original element had a probe that extends the entire diameter of the burner, however the probe of the replacement element only extends half the diameter. This probably isn't the problem, but I thought I'd mention it.
Jim
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Jim,
Check the new heating element for continuity to make sure it's good.
If it is good, then possible the new large heating element is wired incorrectly at the element terminals. Do the terminals on the old and new elements look different?
Gene.
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The new element does have continuity. Interesting that the old one doesn't. I didn't notice before but there is a small break in the coil, with a little charred area there. Not sure why the new one isn't working though. The terminals are a little different, but it looks like the function is the same. One is connected to the coil, and one is connected to the probe. Each of these has a common that's jumpered together. One thing that is different is that the probe only extends the radius of the element on the new unit, but extends the entire diameter on the old. Is there anything I can check with a voltmeter? If I remove the black unit, voltages at the two outlets are 220V and 110V respectively. This is in contrast to the white unit, where voltages are 220V and 0V respectively. Maybe this is the problem? But I'm not sure what to make of it??
Any help is greatly appreciated!
Originally Posted by: Gene  Jim,
Check the new heating element for continuity to make sure it's good.
If it is good, then possible the new large heating element is wired incorrectly at the element terminals. Do the terminals on the old and new elements look different?
Gene.
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Rank: Advanced Member
Groups: Senior Expert, Administrators
Joined: 7/19/2007(UTC)
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There suppose to be four terminals on this cartridge. One round (ground) and three flat. One of the flat terminals (alone on side of the ground terminal) is common for both heating elements and should have 120 VAC reading to the ground, measured at the terminal block with any or both of two switches turned on. One of two others should have 120 VAC reading to the ground while the only one of the switches turned on. At the same time the voltage reading between this and the common terminals should be 240 VAC.
Gene.
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Rank: Member
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Thanks for your help. I found the issue. The thermal switch that is attached to the element, is configured differently on the new element. On the old, the 2 connection terminals are both on the same side of the switch, and that's the only terminals. The new has 4 terminals, and the two that need to be connected are on opposite sides of the switch. Originally Posted by: Gene There suppose to be four terminals on this cartridge. One round (ground) and three flat. One of the flat terminals (alone on side of the ground terminal) is common for both heating elements and should have 120 VAC reading to the ground, measured at the terminal block with any or both of two switches turned on. One of two others should have 120 VAC reading to the ground while the only one of the switches turned on. At the same time the voltage reading between this and the common terminals should be 240 VAC.
Gene.
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Rank: Advanced Member
Groups: Senior Expert, Administrators
Joined: 7/19/2007(UTC)
Posts: 27,455
Was thanked: 4 time(s) in 4 post(s)
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You are welcome. I'm glad you were able to fix it.
Gene.
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