Jenn-air 8208 microwave oven display shows -5E- key board no function

William Miller

• 9179 Answers
• Posted on Nov 18, 2007

SOURCE: Jenn-Air JMC7000 Microwave Stopped working

So it's dead? (No display, no inside lights, no beeps?)

A microwave can be dead for many reasons.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the thermostat to open. When it cools, it closes the circuit and allows power through again.

If it's random, it may be a bad connection, usually on the control board or fuse holder.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Please write back with more details if you need further help.

We appreciate your thoughtful rating of our answer.

SOURCE: No power on Jenn-Air JMC 7000 ADB Microwave

I have a different Jenn-Air built in microwave & oven combination but I'm sure my solution will work for you as well.

My microwave was plugged into an outlet located on the top of the oven. This outlet has a "circuit breaker" that tripped while we were using the self cleaning feature on the oven. You just need to reset the breaker button right next to the wall oven outlet. Why it tripped is a mystery since the microwave was not in use at the time. Bad design.

Of course, getting to the reset button is your only challenge. You need to pull the microwave and oven out of the wall/cabinetry in order to get to it. The unit is heavy so you will need help. Or, call a certified repairman and they should be able to do this for you in 30 minutes or less so the service call should not run you more than @$85 if it is no longer under warranty.

I would also suggest you contact Jenn-Air to complain about this issue and seek reimbursement from them if necessary.

SOURCE: Jenn-Air JMC7000 Microwave stop working

I have the same unit and age the JMC7000 everything appeared normal on the display and countdown etc...But it would not heat,I trouble shooted the problem and discovered it was a faulty door switch I replaced it and it works like new again.I ordered the part from www.repairclinic.com it's an easy fix.and costs a few bucks...

SOURCE: JMV8208 BAW Model 30" Jenn-Air Convection/Micro combo

have a good look at front to see reset??.press it once it comes back on unplug from the wall and & open it up and go to the part and give it a good clean with wd40, check the push pad for ware & tare dirt gathers and builds up

SOURCE: HOW TO REPLACE BLOWN FUSE

Look for a reset button on the back--push to reset. If trips again, unit has probable short.