Question about Smeg S43KIT3750EB Microwave Oven

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What's the difference between the following

What's the difference between the following magnetrons?
OM75P(10) ESHL
OM75P(10) ERHN
OM75P(10) MSMN

The magnetron in my unit only has OM75P(10) stamped on it.

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  • Anonymous Mar 14, 2014

    Whats the difference between samsung megatron OM75P (31) and OM75P (21)?
    Can i switch a 31 for a 21?




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The power is just the same. The initial letter subscript
could signify the mounting position of the magnetron.

Posted on Oct 05, 2009


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2 Answers

Westingtnghouse microwave not heating. What could be the problem.

It is likely the Magnetron is burned out, this is the most expensive part of the machine and is what produces the high energy microwaves that cook the food, money wise I would just replace the oven.

Nov 23, 2016 | Westinghouse Microwave Ovens

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My '80's Solid State runs but does not heat?

If the '80s' you mentioned means the period of manufacture, the most common problem is the failure of the magnetron (that actually does the cooking), the high voltage diode that supplies the rectified voltage to the magnetron, or a fuse that has failed from metal fatigue (expanding and shrinking as current flows through or ceases).
With the cost of labor (if you have any surviving techs around) and the cost of the replacement parts (magnetron $30-$60 US) or the diode (<$10 US) it is questionable if repair makes any economical sense; you might consider replacing it.

Jan 09, 2012 | Kenmore Microwave Ovens

1 Answer

Heats up barely 2 oz water lukewarm in 60 seconds. JE1140/JES 1142 microwave. HV Diode appears open. Should it look open one way and conduct the other as a normal silicon diode on a meter ? Magnetron...

Probably bad magnetron, GE uses the worse mags OM75P is Junk. They go out frequently. And they charge a LOT for them. Find a place called Global MicroParts. They are in Texas. They may sell wholesale only, Im not sure. But their parts work great and last.

Aug 18, 2017 | GE JE1140 Microwave Oven

1 Answer

Buzzing sound... Turntable stopped. food heats up but uneven. No microwave fan when heating.. no light inside expensive fix?? Unit is 10 years old

If the microwave oven is 10 years old then it is time to consider a new unit, by your description it is going into cascade failure where different parts have stopped working, the buzzing sound is the magnetron warning you, it is about to fail. The fans job is to keep the magnetron cool while it is running.

Mar 08, 2011 | GE JVM1850 1000 Watts Microwave Oven

1 Answer

I need a magnetron OM75P (21) to fix Oven,plus a copy of manual

Check this link to find the magnetron. The manual should be search by microwave model number.
Let me know if you need further assistance.

Apr 03, 2010 | Microwave Ovens

2 Answers

Error C5 and large noise in Amana RC22

hi my name is mark, that code stands for current sense.CS the following is a list of the possable things it could be. 1. interlock sw. thermal cut-out wire 4.power relay 5.H.V. board 6.diode 7. magnetron 8.capacitor 9.transformer 10.triac it is worth fixing. RC22s are very expensive ovens if you need part #s i will need the serial # and P# [P132....M] to get correct parts. hope this helps. thaks for your question.

Mar 06, 2009 | Amana RC22S 2200 Watts Microwave Oven

1 Answer

Part number question on (XX)

As long as the mounting position is the same, they are the same magnetron.
Be very careful as there are lethal voltages feeding the magnetron that can be stored in the capacitor for a very long time. It is not practical to try and test a magnetron with a multimeter as all you can read is the heater continuity.
A thermostat likewise is difficult to test but a faulty thermostat won't stop the magnetron from working.
No idea where you are so I cannot comment on a supplier.

Jul 04, 2017 | GE JE1540 Microwave Oven

2 Answers

Microwave does not heat

It looks like the magnetron failed on your microwave.
This something that you may be able to do it yourself, just need to keep some good safety measures when it comes to the high voltage capacitor.
This may be the magnetron for your appliance:

Good Luck.

Feb 20, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE Profile JE1660GB01 magnetron failure?

It pass the resistance tests and still be bad, and I suspect it is.

I would also suggest that you check the high voltage diode to be sure it's not shorted.

If the filament voltage and high voltage are both present at the magnetron terminals, and not loaded down, but there is no heat, then it's the magnetron.

As a pro with over 20 years of expereince, I have always measured the high votlage, but I will never recommend it to a non-professional. Without the right equipment and procedure, you and your equipment can be "fried". No kidding.

Here are some good links to safety & troubleshooting:

We're happy to help and we appreciate your thoughtful rating of our answer.

Dec 17, 2007 | GE JE1660 Microwave Oven

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