Microwaves can last a very long time when they are cared for properly. When a microwave becomes damaged or stops working, many common microwave problems are easily fixed. However, microwaves contain a lot of electrical circuitry, and you must take safety precautions to avoid electrical shock.
Sometimes you must locate the model number of the microwave to determine what the problem is with the appliance, according to Part Select, a company that specializes in selling appliance parts. The model number is usually found on the back of the microwave, on the upper left side of the interior of the microwave, on the side of the control panel or on the front edge of the unit.
Microwaves have fuses that protect the microwave when there is a power surge. Check the microwave fuse to see if the fuse is working properly, according to Part Select. Fuses are usually melted or blown, though you must test ceramic fuses with an ohmmeter. Replace the fuse with a new fuse if it is blown.
A switch is located on the microwave door that prevents the microwave from operating when the door is not closed. Sometimes this switch malfunctions and tells the microwave that the door is open when it is actually closed, according to Part Select. The latch that is connected to the switch sometimes becomes broken and requires replacement.
Sometimes a spill on the microwave touch pad can cause the microwave to collect moisture inside, which can cause the touch pad not to function properly. Allowing the microwave touch pad to dry out for a week can fix this problem, according to Repair FAQ, a website devoted to frequently asked questions about electronic product repair.
When repairing a microwave or another electronic product, keep a first aid kit handy in the case of an injury. Wear gloves to protect from shock, according to Part Select. Examine the tools that are used to repair the microwave to ensure that they are in good condition. Before working on the microwave, unplug it. Use a voltage meter to ensure that there is no electricity still in the microwave.
Protect the Microwave
Preventative maintenance can reduce the number of repairs on the microwave. Clean the inside and outside of the microwave regularly. The outlet that the microwave is plugged into should have surge protection, according to Repair Clinic. Also, do not forget to put food or liquid in the microwave since running the microwave on empty can damage the internal circuitry of the microwave.
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