Question about KitchenAid KCMS145J Microwave Oven

1 Answer

Sounds like it's running but no heat

I burnt bagels by severely overcooking, probably set timer too long. First notice was the smoke detector going off. Oven had terrible smoke smell so I disconnected it, took the cover off, and cleaned the fan housing, surrounding parts, and the shell using wet soapy washcloth. I avoided getting anything electrical wet. I tipped the oven on its back and side to get to all the areas. Everything was reassembled in reverse order of being taken apart. The next day when I plugged it in and ran it everything sounded fine but a cup of water did not warm up. Meanwhile, the time display set time ok but there is a dim extra digit, "8" showing to the left of the time digits. The subscript lower left of center in this time display area always shows "cook". The countdown timer works fine but no cooking action. When it counts down, the last "second" digit shows up faintly to the left of the cook time remaining digits. Did turning the oven on its side and back offend the electronics? Could I have disorientated the Magnetron? Is there something on the display panel I can reset? Is there any way to get fault codes with this control panel or is that too complicated for a microwave? The owners manual is no help. Any advice will be appreciated. If I can get it to work I will use the vinegar boiling water to try to get rid of the residual smell. Thanks.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • KitchenAid Master
  • 8,803 Answers
Re: Sounds like it's running but no heat

Those symptoms are what I would expect when the controller or keypad gets wet. Tipping it is not an issue, unless that allowed the water to run into the controls more than just the wet soapy washcloth did. You may get lucky - it may dry out by itself in a few days. If not, and if careful targeting drying doesn't fix it, it will need a new keypad or controller.

Posted on May 23, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

How to make rice

Cover with the lid and turn the heat down to its lowest setting. Leave it alone - once the lid is on, set the timer and go away! If you lift the lid and let the steam out you can slow down the cooking process, and rice should always be cooked as briefly as possible. Give white rice 15 minutes and brown rice 40 and use a timer - overcooking is what spoils rice. The best way to test if it is cooked is simply to bite a grain. Another way is to tilt the pan and, if liquid collects at the edge, it will need a couple more minutes' cooking.

May 31, 2014 | Emerson Microwave Ovens

1 Answer

There is a burning smell and outside of freezer compartment top and side are hot to the touch . Even though everything seems to be working. I have since unplugged the unit. This problem was first noticed...

This sounds as if the defrost is stuck on. This could be due to a failed defrost timer or
failure of the defrost termination thermostat in combination with the defrost timer stuck.
I would replace both at the same time. Some disagree on this, but if the contacts are
burnt in the defrost timer due to power surges, then the termination thermostat contacts
may also be burnt.

Mar 02, 2011 | Microwave Ovens

1 Answer

My KitchenAid microwave oven's model number is KCMS185JSS-4. Manufacture date is July 2005. It's been working fine until today, with an occasional glitch in the digital readout... sometimes the letters...

Either your high voltage rectifier or magnetron (or both) has failed.

You can find helpful exploded view diagrams and order parts by entering your full model number here.

Here are some links you or someone you know can use for test help, but read their safety warnings first:
(if it's not shorted or burned, it's probably okay)

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Sep 30, 2010 | KitchenAid Microwave Ovens

1 Answer

No heat micro keeps cycling through all programsdemo in cook/bx

My GE doesn't have a Demo mode but say we have a power failure. It won't let me use it until I set the clock.

Try that and see if it helps

May 26, 2009 | GE Profile Spacemaker Over-the-Range...

1 Answer

Whirlpool MH1140XM: has power, but no heat, turntable not spin.

Test the high voltage capacitor, the rectifier diode.or the magnetron.

The diode and capacitors can br tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, even if power is off. Capacitors can get discharged by shorting their two contacts.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.

All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts.

May 11, 2009 | Whirlpool MH1140XM Microwave Oven

1 Answer

Overcooked potato overcooked the microwave

The magnetron probably overheated, blowing the thermal cutout / thermal fuse / thermostat mounted on it.

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

You can find helpful exploded view diagrams and order parts by entering your full model number here:

Nov 16, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Strange sound - seems to cook too hot?

It sounds like either your inverter is producing too high a voltage, or your magnetron may be damaged, causing it to overcook. In either case, it definitely needs professional attention. There are very high voltages involved. Since it's out of warranty, the repair charges would likely run about $75-90 labor for in-home service (less if you carry it in) and about $40-75 for parts depending on which is bad. If you run into a technician who can repair the inverter instead of just swapping it, you might save a bit.

Sep 13, 2006 | Panasonic NN-S252WF Microwave Oven

Not finding what you are looking for?
KitchenAid KCMS145J Microwave Oven Logo

121 people viewed this question

Ask a Question

Usually answered in minutes!

Top KitchenAid Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8803 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Barrett Palumbo
Barrett Palumbo

Level 2 Expert

1772 Answers

Are you a KitchenAid Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides