The vent fan of my microwave won't turn off even after unplugging it for several hours

SOURCE: No key's work. Display and inside light is working

The Keypad is either faulty, or disconnected. Open the case, and remove the screws, holding the outer shell on. Inside, there should be a small board that covers the Keypad. Check to see if there is a ribbon cable, or some other type of connection going from the board to another part of the microwave. If all of the wires are connected, then you will probably need to replace the keypad.

SOURCE: lg microwave LMV1650ST

don't try to fix this yourself, faulty microwaves should be repaired professionaly or replaced.

SOURCE: I have an LG over the stove microwave that beeps

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

The diodeand capacitors can be tested. The capacitor must be allowed dischargebefore testing, or you risk to get electrocuted, even if power is off.Capacitors can get discharged by shorting their two contacts.
Before replacing the magnetron test also the control board.
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...

thank u
rate me

SOURCE: Microwave shuts off as soon

Hi


Thanks for using FixYa. This most commonly is a bad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common. Also make sure you hear the fan is still operating in your microwave. Next is to make sure the air intake grill on your microwave is not plugged up with air borne dust and dirt.


Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks
Rylee

SOURCE: speeds through cook time

u may have problem in your dos it can be fixed by a service provider