Question about Jenn-Air JMC8130DDS Microwave Oven
Our 5-year old built in jmc813odds suddenly went totally dead at the same time we were auto-cleaning the lower jenn-air conventional oven. It's still plugged in, nothing was tripped in our electrical box. What could be the problem?
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Posted on Jan 02, 2017
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.
Posted on Nov 18, 2007
SOURCE: jenn-air microwave dead
I'm afraid since Jenn Air has become a division of Whirlpool (along with numerous others) the quality has suffered.
I was going to suggest that you purchase a service manual for your unit so you could 'reset' it yourself. Service manuals can cost from $12-$40 US and in many cases obviate the need for 'professional' service calls. However, I couldn't find one offered for your model number so your only choices are to continue to pay for 'service' or examine the guts visually to see if you can locate any reset feature. This is what I would do.
When microwaves fail, older ones generally need a diode, a big capacitor or the magnetron replaced. Newer units are suffering power supply failures as many have moved from the reliable but less efficient 'linear' power supplies to 'switched mode' types that are more efficient but more complex and prone to failure. These later types usually have the word 'inverter' in the model description.
Posted on Jan 04, 2009
I read your comment about needing to remove the control board to inspect it for damage. Looking at the diag. below, all you need to do is open the oven door and remove the two screws (#2 on diag.) fastening the brackets that hold the board in place and you can take it from there.
Refer to the diag. below If it was me, I would start by turning the breakers for both ovens OFF, then, in getting someone to help me pull the oven out, disconnect the power cord and check the power circuit protection devices like the fuse #4, located above the fan and the power board #25 also located on the back of the unit. Before replacing the blown fuse, inspect the wiring, If the unit is mounted over an oven that was in the Self Cleaning Mode that reaches temps. of about 500 degrees, there is a chance that a wire's insulation melted and shorted the unit.
If you need better resolution and the names and prices of the components on these diagrams, click on the following links: for the first diag: http://www.searspartsdirect.com/partsdirect/part-model/Jenn-air-Parts/Microwave-Parts/Model-JMC8130DDB/1266/0123100/M0512405/00001?blt=06&prst=0&shdMod=JMC8130DDB for the second diag: http://www.searspartsdirect.com/partsdirect/part-model/Jenn-air-Parts/Microwave-Parts/Model-JMC8130DDB/1266/0123100/M0512405/00004?blt=06&prst=0&shdMod=JMC8130DDB
I hope this info is helpful to you. If you need further assistance, just place a comment.
Posted on Mar 03, 2011
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