Microwave Fan Not Working, How to Fix?
Have you noticed that your microwave fan isn’t working as it should? Don’t be alarmed, we are here to help you diagnose the problem and find a solution. Before you think about repairs, follow the steps below carefully to find out the possible reasons for the failure.
POTENTIAL CAUSES FOR THIS FAULT:
WARNING
We recommend adopting a very cautious and safety-conscious approach if you need to take your microwave apart at any point.
Microwave ovens produce powerful electrical discharges that can potentially be fatal.
Never test and use a multimeter on the appliance with it still plugged into the mains. The voltages on either the magnetron, transformer or capacitor may be too high for the multimeter to cope with.
Even when unplugged, the capacitor inside the microwave oven can still produce power electrical discharges.
We therefore recommend you leave the appliance to discharge for at least one day before taking it apart.
When you first open the microwave up, make sure you short circuit the capacitor using a pair of electrically insulated pliers (with the appliance unplugged from the mains of course).
We also recommend wearing a pair of electrically insulated gloves to ensure you are able to work in complete safety.
Carrying out repairs on a microwave oven requires a very careful and safety conscious approach. SOS Accessoire cannot be held responsible for any accidents that may occur.
Electrical problem
Electrical problems, such as a blown fuse or damaged wiring, can prevent the fan from working properly. Make sure the microwave is plugged in properly and check your fuse box for any blown fuses.
Faulty engine
The motor that powers the fan may be faulty, preventing it from working. Since the motor and fan are closely linked, if the fan is not spinning a motor failure could be the cause of the problem. You can also test the motor using a multimeter: if it shows a resistance of 0 Ohm, it means that it should be replaced.
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Damaged or blocked fan
The fan can be damaged. For example, if it is broken, cracked or blocked by debris, preventing it from running properly. Take the time to visually inspect the fan for any potential problems and ensure that it is running freely.
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The control board is defective
A failure of the microwave control board can also affect the operation of the fan. If the fan does not meet any of the previous checks, it is possible that an electronic component of the board is defective and will need to be replaced.