Question about Amana AMC6158B 1000 Watts Convection / Microwave Oven

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Repair an Amana microwave

How to replace a capacitor and diode on amana micro Model AMC 6158B

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My amana micro just went dead. No lights nothing ,almost like a fuse blew.Its an over the stove model . The outlet works fine.#mvh210w

Posted on Nov 21, 2008

  • mission15 Nov 22, 2008

    I found the fuse and replaced it ,and it all worked until i hit start then the new fuse blew right away.

    Any idea as to what it maybe? thanks mission15

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Check the door switch amana used a dbl pole swith on some of there models both poles if one pole works and the other doesnt will cause a dead short.

Posted on Apr 19, 2012

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Posted on Jan 02, 2017

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1 Answer

Amana Radarange Model ACM 1580AW makes a noise, won't heat electrical burning smell coming from microwave.


It may be a failed high voltage diode, high voltage transformer, or magnetron, or just a bad relay on the control board.

If you could take a video with sound and send it to me, I may be able to diagnose it by the noise, then give you detailed help on repair.

For more free DIY and other help & advice, feel free to contact me.

William E. Miller, AS-EET
pupista@gmail.com
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

Mar 13, 2017 | Amana Microwave Ovens

1 Answer

I have a model aco1860 it made loud hum then went dead


Sounds like the cook capacitor has shorted. This is a common thing with some microwaves. There is also a protection diode across the capacitor, which might have shorted instead, it's there to protect the capacitor from voltage spikes. Best place to get parts is WES Components at Ashfield in Sydney, depending where you live.

Feb 24, 2015 | Amana Microwave Ovens

2 Answers

Microwave oven not heating up


The problem you are having with your microwave is a common one; most common solution:
a. the magnetron that actually does the heating is what is making that noise and has gone bad.
b. It is possible for you to also have a bad high voltage diode that has opened up, or
c. the high voltage capacitor is not working properly as well.

Hope helps. (remember to rate and comment this answer).

May 06, 2011 | Amana Microwave Ovens

1 Answer

Everything works but will not heat


It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Dec 27, 2010 | Amana UMV1152CA 1000 Watts Microwave Oven

1 Answer

Microwave turns on but does not heat.


The magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the diode with either an AVO model 8 on high resistance range for short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Oct 31, 2010 | Amana ACO1840A Microwave Oven

1 Answer

Amana microwave M#rcs10mpsa that had a loud hum that sounds like it was coming from the transformer or capacitor and then it blows the two control fuses. i replaced the magnatron but it is doing the same...


you need a meter than has the ability to check capacitors. These meters are generally more expensive like 150 bucks and mostly sold for HVAC techs. You disconnect all wires to the cap and connect your test leads. The hum is usually the transformer getting ready to die. Just keep using it until so. The transformer will run you about 130 bucks I think.

Oct 14, 2010 | Amana RFS12MPS Microwave Oven

1 Answer

Amana convection/micro #AMC1580AB popping SOUND and sparks


That would be ACM1580AB, just in case that was throwing off your searches.

If the noise came from within the oven cooking cavity, it may be grease of food on or behind the waveguide cover (called a canopy in this case) which is fastened to the wall of the oven with two screws, apparently.

The cover and the area behind it must be clean.

If the canopy is burned or damaged it must be replaced.

If the sound was coming from behind the controls or on the right side under the outer cover, then it is probably a bad high voltage rectifier diode.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted, it's probably okay)


http://www.gallawa.com/microtech/mag_test.html
(even if the magnetron passes these tests, it can still be bad. If you have high voltage and the diode is good, assume the magnetron is bad)

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

The actual service manual (with installation & operation info, too) is free to download here.

Your owner's manual is availabel free here.

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

Sep 26, 2009 | Amana ACM1580 Convection Microwave Oven

1 Answer

Amana AMC1580AB convection.Micro electric popping spark


That would be ACM1580AB, just in case that was throwing off your searches.

If the noise came from within the oven cooking cavity, it may be grease of food on or behind the waveguide cover (called a canopy in this case) which is fastened to the wall of the oven with two screws, apparently.

The cover and the area behind it must be clean.

If the canopy is burned or damaged it must be replaced.

If the sound was coming from behind the controls or on the right side under the outer cover, then it is probably a bad high voltage rectifier diode.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted, it's probably okay)


http://www.gallawa.com/microtech/mag_test.html
(even if the magnetron passes these tests, it can still be bad. If you have high voltage and the diode is good, assume the magnetron is bad)

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

The actual service manual (with installation & operation info, too) is free to download here.

Your owner's manual is availabel free here.

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

Sep 26, 2009 | Amana Radarange Microwave Oven

1 Answer

Amana cmax microwave


Test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.

The diode and capacitors can br tested. The capacitor must be alloweddischarge before testing, or you risk to get electrocuted, even ifpower is off. Capacitors can get discharged by shorting their twocontacts.
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. (here in UK).

Nov 29, 2008 | Amana HDC21 Microwave Oven

1 Answer

Amana radarange microwave oven 1000 watts not heating.


The two possible causes are a faulty door switch and a bad magnatron. You can pull the top cover off of the unit and check all of the door switches (there are 2-6 of them all on a common rail, me normally closed)). If the door switches all check out, replace the magnatron, diodes, and capacitor.

Oct 27, 2008 | Amana AMV5164 Microwave Oven

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