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I have a khms145kss microwave which is making a loud humming noise and not heating. Turntable, control panel, fan are all funtioning.
Any suggestions on what the problem is?
ihave the same problem, when I push start, the noise is so loud that I stop it right away. what should I do?ihave the same problem, when I push start, the noise is so loud that I stop it right away. what should I do?
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MagnetronIf your
microwave is emanating high pitched or growling noises during operation,
the magnetron could be going bad. Normally a nearly silent part, the
magnetron uses high voltage and induces the frequency required to cook
food. Although normally not a safety hazard to operate, this is a sign
that the magnetron is failing and will need to be replaced as soon as
possible.
Exhaust fan motorIf
your microwave is making a very loud humming noise during operation, it
could possibly be the exhaust fan motor. If defective the part will need
to be replaced to silence the appliance once more.
Stirrer motorAnother
leading cause of a noisy microwave is an expired stirrer motor. With use
this part becomes worn and makes a loud grinding noise, which is
usually a leading indicator that the part needs to be replaced. The
stirrer is a metal blade that is slowly turned by the motor. This action
disperses the microwave energy in a random pattern, which heats the
food evenly. If the stirrer motor is determined to be nearing
expiration, it should be replaced to halt the grinding noise.
Turntable motorA very
common cause for a noisy microwave is a worn out turntable motor. This
is a relatively easy repair and will put an end to the noise once
replaced.
MagnetronIf your
microwave is emanating high pitched or growling noises during operation,
the magnetron could be going bad. Normally a nearly silent part, the
magnetron uses high voltage and induces the frequency required to cook
food. Although normally not a safety hazard to operate, this is a sign
that the magnetron is failing and will need to be replaced as soon as
possible.
Exhaust fan motorIf
your microwave is making a very loud humming noise during operation, it
could possibly be the exhaust fan motor. If defective the part will need
to be replaced to silence the appliance once more.
Stirrer motorAnother
leading cause of a noisy microwave is an expired stirrer motor. With use
this part becomes worn and makes a loud grinding noise, which is
usually a leading indicator that the part needs to be replaced. The
stirrer is a metal blade that is slowly turned by the motor. This action
disperses the microwave energy in a random pattern, which heats the
food evenly. If the stirrer motor is determined to be nearing
expiration, it should be replaced to halt the grinding noise.
Turntable motorA very
common cause for a noisy microwave is a worn out turntable motor. This
is a relatively easy repair and will put an end to the noise once
replaced.
MagnetronIf your
microwave is emanating high pitched or growling noises during operation,
the magnetron could be going bad. Normally a nearly silent part, the
magnetron uses high voltage and induces the frequency required to cook
food. Although normally not a safety hazard to operate, this is a sign
that the magnetron is failing and will need to be replaced as soon as
possible.
Exhaust fan motorIf
your microwave is making a very loud humming noise during operation, it
could possibly be the exhaust fan motor. If defective the part will need
to be replaced to silence the appliance once more.
Stirrer motorAnother
leading cause of a noisy microwave is an expired stirrer motor. With use
this part becomes worn and makes a loud grinding noise, which is
usually a leading indicator that the part needs to be replaced. The
stirrer is a metal blade that is slowly turned by the motor. This action
disperses the microwave energy in a random pattern, which heats the
food evenly. If the stirrer motor is determined to be nearing
expiration, it should be replaced to halt the grinding noise.
Turntable motorA very
common cause for a noisy microwave is a worn out turntable motor. This
is a relatively easy repair and will put an end to the noise once
replaced.
MagnetronIf your
microwave is emanating high pitched or growling noises during operation,
the magnetron could be going bad. Normally a nearly silent part, the
magnetron uses high voltage and induces the frequency required to cook
food. Although normally not a safety hazard to operate, this is a sign
that the magnetron is failing and will need to be replaced as soon as
possible.
Exhaust fan motorIf
your microwave is making a very loud humming noise during operation, it
could possibly be the exhaust fan motor. If defective the part will need
to be replaced to silence the appliance once more.
Stirrer motorAnother
leading cause of a noisy microwave is an expired stirrer motor. With use
this part becomes worn and makes a loud grinding noise, which is
usually a leading indicator that the part needs to be replaced. The
stirrer is a metal blade that is slowly turned by the motor. This action
disperses the microwave energy in a random pattern, which heats the
food evenly. If the stirrer motor is determined to be nearing
expiration, it should be replaced to halt the grinding noise.
Turntable motorA very
common cause for a noisy microwave is a worn out turntable motor. This
is a relatively easy repair and will put an end to the noise once
replaced.
The diode that connects to the capacitor needs to be replaced. Once its replaced microwave will begin to heat again. (If it wasn't heating and wasn't making a humming noise, then your magnetron would need to be replaced). If you are thinking of doing it yourself and need instructions, i'll be glad to help.
From your description it sounds like the magnetron has failed in this oven. That's the part the makes the microwaves to heat the food. It typically fails by shorting out and making a loud hum noise. It not usually worth fixing since the price of a replacement magnetron is almost as much as a new oven.
In all likelihood the mangnetron has failed, or perhaps even the Power Supply. You need to have it serviced by a reputable service centre/man.
Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.
you have done well out of the oven . it sounds that certain components are well worn and probably no able to get parts best advice it time to buy a new one
The second problem is probably defective door switches, or it may be a problem with the control panel, which we repair nationwide for only $32.50.
On my Web site, I have info on safety, disassembly, and diagnosing and replacing door switches: http://tinyurl.com/yzjozk
Running it empty has damaged the magnetron. It will work for a while, but it will eventually have to be replaced. A good parts source is here: http://tinyurl.com/gv383
ihave the same problem, when I push start, the noise is so loud that I stop it right away. what should I do?
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