follow this steps and fix it. God bless youLine FuseEvery microwave oven has a line fuse. This fuse is designed to blow if too much current is drawn through the microwave circuitry. The fuse can be replaced, but the underlying issue should still be investigated and resolved. Otherwise the new fuse will blow also.Main Control BoardIf the microwave is not working the main control board may be defective. This is not common. When a microwave stops working the problem is usually the line fuse or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.Thermal FuseIf the microwave is not working the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.ThermoprotectorIf the microwave is not working the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if it's blown.
It's not a fuse issue.This light failure often
occurs when a bulb goes out and the filament
shorts, or when the bulbs are removed or installed without first
unplugging the oven from the power line. Either can cause such a
failure on the controller.The lights can can be
inoperable or stuck on or stuck in "night light" mode. Sometimes this will similarly
affect the fan operation or inside light, too.We see and repair this
a lot. The problem is on the control circuit board.You can have it repaired or replace the smart board yourself.You
can find helpful exploded view diagrams and order parts by entering your full
model number
here.
Here's a
YouTube
video showing how to remove a typical over the range control panel
assembly in under 5 minutes. Then...
Some connectors have a lock.
Then you remove the defective board and install the new one in your frame. Be careful, since the display is made of glass.We're
happy to help you with free advice and we'd appreciate your thoughtful rating of
our answer.
Possible failure of the drive belt or the turntable motor. Remove the bottom cover to confirm failure of the drive ,belt or if the motor has failed- check power to the motor when the microwave works if the motor tests OK.
Thank you for posting your complete model number and symptoms.Hmmm... I don't see an option for me to post a Clarification Request... What now, FixYa???When you hit "Start" to
microwave, do the inside light, cooling fan, and turntable all
come on?
If so, the likeliest suspect is the magnetron.If not, I would suspect a door switch.
Are the any unusual noises? Is
it louder or quieter than usual?We have a sound clip of
what a microwave should sound like when the cooling fan and high
voltage section are operating here.These answers (if I could get them somehow) would help
me judge whether it's in the high voltage
section (magnetron, transformer, or diode) or the control section
(door switch or control board relay or connection).
You probably have a shorted cook relay.We regularly repair this problem with our $39.95 service, or you can order a new circuit board from the Pros here, our favorite supplier.