Question about GE JVM1320 Microwave Oven

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Sc1124sh relay Where to get relays for this unit

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Try here.

Posted on May 03, 2013


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My Whirlpool microwave randomly makes a growling noise (with vibration) when not in use. It seems to be coming from the top above the fan area. Something going out?

sometimes a bad relay on the main timer board will tell the unit to heat with nothing in it and it will arc in the wave guide or antenna area. Arcing sounds like growling or grumbling. "Random" may be from the relay sticking sometimes and then sometimes not. Will destroy the wave guide and the magnetron and the unit could not be repaired. Would have to be replaced if that happens

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I have a Kitchenaid YKHMS147HW microwave that started turning on by itself, and will not shut off unless I unplug the unit. If I put food in to cook, the food starts cooking as soon as I plug the unit in,...

Sounds like stuck relay contacts. Magnetrons need a high voltage source which is controlled by a micro to relay and then from relay to voltage source. Even the turntable works via a relay.

Oct 14, 2013 | Microwave Ovens

1 Answer

Door Open light flashes and relay clicks rapidly

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.
If it still fails, please post a new help request with the full model number from the tag in or on the unit.

Apr 29, 2013 | Whirlpool WMH1163XVS Microwave Oven

1 Answer

Tappan microwave vent motor and cooktop lights not working

see this test . God bless youThis microwave oven repair is only for over the range(OTR) models. First, with microwave still installed, gain access to the control board and check for voltage from the fan relay. If you are not getting voltage from the fan relay on the control board, and your display says fan is on, then you need a new control board.
Again, this microwave oven repair is for OTR models. If you know your light bulbs are good and your display is telling you that they should be on, check the light relay on your control board. If no voltage is found at that relay, then replace the control board. Otherwise your problem is in the light socket, wiring, or wire connectors. You can get to all of that by unscrewing 6-8 screws under the unit and taking the bottom panel off.If voltage is present and the wiring that you can see looks good, then you will have to take the unit down and test for voltage at the fan itself. If the voltage is present there, then test the motor itself and/or start capacitor for the motor. The fan motor assembly will slide out of the top of the unit after you take it down and unscrew 2 screws. Below, in the list of component testing, you will see how to test the motor and start capacitor. get the part from

Apr 04, 2013 | Tappan Microwave Ovens

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KitchenAid Microwave KHHC2090

Remove the relay case and gently file the points until clean with a miniture file set from Radio Shack, and spray the points with electronic cleaning spray also available from the same location, try this if new relay won't work.

Aug 01, 2012 | KitchenAid Architect Series II KHHC2090S...

1 Answer

Runs down to 1 min. then runs forever .I have to shut it off manualy

Possible that the main program controller unit is not shutting down due to the relay being latched ON even after the time is finished.
You need to check if the processor cuts off the relay and still if the relay holds down, If so the relay drive transistor or the relay is faulty.
Also it can be fault of the program processor/timer as it fails to cut off the relay drive. If so check the circuit, wash the board if you find insects secretion. Also try to solder the processor and associated circuits and try again before the board is confirmed as a suspect.
take estimate and decide.

Jul 12, 2011 | Microwave Ovens

1 Answer

My Hitachi microwave oven fuse blow up when i press the power on. what could be a possible problem.

possible the control board has a stuck relay and inside the relay the points are bad... going to have to purchase a control board for unit....

Jan 09, 2011 | Microwave Ovens

1 Answer

I have a microwwave oven that turns on but will not heat. It has never worked. Is this an install problem or unit problem? KCMS145JSS

You will need to check to find out if the microwave has all the power coming to the critical units.
If the latch switch is active then the turntable and fan must work but if there is no heat, the check on the thermal cut off switch fitted on the side of the cabin , if faulty. , the pwoerr will be cut off to the magnetron. Check also to confirm that the high voltage capacitor is working and not shorted or open.
The relay on the main boarrd also must click to switch on or else the relay or relay drive must also be checked out.

Aug 27, 2010 | KitchenAid KCMS145J Microwave Oven

1 Answer

Microwave is humming when off display says F6

We had a power failure for 2+ hours. I went to defrost something when the power came back on. Somewhere along the line the F6 popped up. With the door closed it sounded like the machine was running.
I slapped the side too and it worked. I pulled the vent cover off to clean it and found the tech sheet stuffed in a bag inside. I found what F6 means. 'Microwave relay failure. Check wiring to relay 4903 for short circuits. If wiring is ok, replace control board' Then, of course, a whack on the side by the button panel worked
just as well. rek('_tx6');
Reference: It means the relay is stuck in the run position. Apparently if you slap the unit hard enough it will unstick the relay and allow it to work properly again. rek('_tx7');

Aug 06, 2010 | Kenmore Microwave Ovens

1 Answer

Fans and lights don't work on our Advantium sca2000bbb. Display does. The main fuse is OK. Is there another?

Some relays must have got stuck open. Check the following schematic. You should check the Main relay, RY14 and RY15 for lamps and relay RY6 for the fan.

For your own safety, always make sure you are working safe. Microwave units can be very deadly. Consult an expert if in doubt.

Jan 04, 2010 | GE Advantium SCA2000B Microwave Oven

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