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Replaced board and keypad and problem isnt resolved. Superba microwave 10 years old
It wont go on. Lights up with breaker, clock starts. Most keys dont work. Start button does nothing. Only 1 and 2 buttons work. Now it beeps every few minutes.
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Unplug the microwave oven for 10 minutes in a attempt to reset the microprocessor ic, press and hold the start button for the same time and release. Now plug everything back in hopes it will restart, if no change! the keypad control board will need to be replaced along with other unknown parts, due to the nature of damage far cheaper to replace.
The main fuse in the microwave is probably open, causes are! door switch, magnetron, inverter board, "if 7 years old or less" and possibly the keypad control board. I recommend having it checked out.
The magnetron is shorted, the keypad control board is bad, blowing fuses. If less than 7 years old it has a inverter board that can be trouble, But with the level of work and parts it will easily exceed the cost of a new microwave oven.
If you press clock and nothing happens your keypad has shorted out and needs to be replaced. Try to unplug the unit one more time and try to turn the unit on again. If you have the same problem replace the control panel.
Try going to the breaker box and shutting off the power to the microwave for 10 minutes. After 10 minutes, turn back on and set the clock. This fixed my clock and turntable both. Apparently turning off the power resets the software in the clock.
Do you know if the fuse blew again? You may have a problem with the powers supply section that powers the main board. The main board controls the display and receives input commands from the keypad.
Please let me know if I can be of further assistance to you.
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