Hi, I have a Whirlpool GH5184XPS-7 microwave oven. It's around 2.5 years old. Two days before it was turning off after 2-3 secs, giving F7 error. I tried couple of times to turn ot on and after 5-6 attempts, the microwave died, no power and no clock. I thought, it could be because of blown fuse, do I replave the main 20A fuse which is behind the control panel. The power came back, I could set the clock but as soon as I started it, immediately the fuse blow out. What could be the issue? Thanks.
The problem is in the magnetron or the inverter board.
Unplug microwave, reomove top, {several screws} if you have a digital meter set it to ohms, remove one connector from the magnetron and put the test leads across the too points, a good reading should be well below 1 ohm, if no reading can be obtained the magnetron is open, {this a rough test not conclusive}
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SOURCE: whirlpool gh5184xps over-the-counter microwave no power
There is a high voltage fuse in the unit attatched to the high voltage capacitor, it is the most common problem for microwaves not working. Also check the protective diode,the high voltage capacitor as well as the transformer if the fuse is ok. Good Luck.
SOURCE: Kenmore Micro/Oven fuse keeps blowing
Disconnect the connector to the primary winding of the high voltage transformer. Put a new fuse . If the fuse is not blowing the problem may be in the secondary side of the high voltage transformer. Chek the highvoltage diode, capacitor, magnetron respectively. you can also check the primary winding of the low voltage transformer.
SOURCE: E-Wave over the range microwave has blown main fuse
My Ewave has stopped heating eventho it appears to be running. Is is possible the power has been reduced or does the microwave need to be replaces
SOURCE: Went to use microwave and it just went dead.
short circuit in high tension power supply
DUE TO THE VERY HIGH AND DANGEROUS VOLTAGE 4000( V) IT IS NOT WISE TO FIX IT YOUR SELF UNLESS YOU KNOW WHAT YOU ARE DOING
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Thanks John.
Do you have step-by-step procedure to open unit and how to test magnetron or the inverter board?
Thanks,
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