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Jenn-air oven not heating

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Oven Repair (including Ranges and Cooktops)

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My Jenn-air oven suddenly stopped heating. No error codes. Display shows preheat and 100 degrees. Same problem whether Bake, Convect

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  #1 (permalink)  
Old 08-18-2013, 09:34 AM
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Default Jenn-air oven not heating
Model Number: W27400   Brand: Jenn-Air   Age: More than 10 years   

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My Jenn-air oven suddenly stopped heating. No error codes. Display shows preheat and 100 degrees. Same problem whether Bake, Convect Bake or Broil.
Neither top or bottom element gets hot, but I can hear periodic clicking like a switch is trying to call for heat.
Appreciate advice, especially if it sounds like a single part I can replace.
Thanks very much.


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  #2 (permalink)  
Old 08-18-2013, 09:53 AM
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I cannot find any tech info on this unit.
Here are your parts
Parts for W27400 - AppliancePartsPros.com

But the first thing I would check is the power to the unit.
Try flipping the breaker off/on slowly a couple times, sometimes you can loose half the line without actually tripping the breaker.
The heating elements require the full 240 volts.
If this does nothing, check the voltage at the plug
L1 to L2 should be 240 volts
L1 to Neutral and L2 to Neutral, both should be 120 volts.
If OK
Unplug the unit and check the wires at the terminal strip in the machine to make sure none are loose or burned out
If OK
Check the power at the terminal strip.
Be careful as 240 volts is lethal !!!

If the power is good and since the unit stays in pre-heat then odds are high that the control board/timer is toast.
I would check the wiring just in case you have a burned off connector or some other wiring problem.
I cannot find a fuse or thermal cut-off in the parts that would stop power to the elements.
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  #3 (permalink)  
Old 08-18-2013, 12:06 PM
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Power to oven is OK. Now when I first try to heat oven after power up, I get a F5 code. Only the first time.
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Old 08-18-2013, 01:30 PM
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Here is what comers up for that error code.
I cannot confirm that it applies to your unit as I cannot find a tech sheet on it.
F5---Hardware and watchdog circuits disagree---Replace clock assembly (also called the ERC)
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