If the plate is rattling, investigate the coupler and guide roller. It might also be the high voltage diode. Depending on the microwave, it might also be the cooling fan. One of the most frustrating types of microwave malfunction is when the touchpad stops responding. A microwave should at least beep when you push the buttons. If your touchpad seems to be completely dead, it could be one of two things.
First, check out the membrane switch which can determine the responsiveness of each individual button. For above-the-range microwaves, there may be an exhaust fan that helps keep the air clear above your stove. When the exhaust fan stops working, there are a few different things you can try. First, investigate the air filters. A charcoal or metal mesh filter can be changed out or washed and cleaned to restore them to usefulness. Next, take apart all the moving pieces, clean them, and put them back together.
And if you find a broken part in the exhaust fan assembly, replace it. When the microwave light goes out, the ease that the bulb can be replaced depends on the model of your microwave. But you may have to fully open up the case to replace your microwave light. If you know the bulb is good, the problem might alternately be your control board. You must be logged in to post a comment. Appliance Express. March 19, Microwave Repair. Leave a Reply Cancel Reply You must be logged in to post a comment.
My microwave oven stopped working. If throw it away, the world will have one more trash and I will have to spend some more money to bring back a new one. I decided to open the microwave oven to see if I can save it. Warning: 1 Read and Follow the warning label on the microwave oven.
There are 2 screws on right side and 1 screw on left side. They can be easily remove with normal screwdriver. But there are 4 screws on the back are little special, a star screwdriver is needed. After open the back cover, check the fuse first. I checked it with a resistor tester, if it shows the fuse resistance value is infinity. That means the fuse is broken. Only need to change a fuse for the microwave oven.
But it showed a resistance value on the meter, this means the fuse is not broken. I have to go to find problem in some other places. The next step is to inspect door switches. There are 3 switches in the microwave oven. See their location in the pictures. Press down the pin beside the switch and rotate the switch a little to take it out. Inspect one by one, I found one switch is little different with others, the first is press the button there is no contacts click voice, the second, found there is something burned on the plastic by visual inspection.
Open this switch to verify. In the picture, press the button down, the contacts cannot be connected. Yes, this one is broken. Since some plastic is burned, this switch has to be changed.
Found the spec and model on the back of the switch, I bought a similar switch online - the grey one on the picture, to replace the broken switch. The following things are connect wires to the new switch and install it properly. Just reverse the operation what I did. Close the back cover, drive in all screws and put the moving parts back. In my case, since the microwave oven has stopped working and unplugged power for a long time and there is one discharge resistor in the circuit, so I didn't show the discharge steps.
I agree with the comments of instructablers. The capacitor must be discharged before beginning any repair. The capacitor is in the back side lower corner. In my oven, it is covered by a plastic sheet. Please check it online how to discharge a capacitor. Question 2 years ago on Step 3.
Answer 6 weeks ago. Answer 2 years ago. Check with mouser. Question 6 weeks ago on Introduction. I have 2 national microwave ovens with same problem. The start button stopped working. All are digital. What could be the problem? I also have a LG microwave smart inverter Question 4 months ago on Step 7.
The magnetron is the heart of a microwave that actually makes the micro-waves. Replacing it is about equal to the cost of buying a whole new microwave, sometimes even greater. If the magnetron is busted, microwave replacement is a part of your future. Appliance repair technicians now how to quickly and safely take apart an appliance and test each of the essential components.
They also often carry common replacement parts or can give you a quote on parts that need to be ordered. With the help of an experienced appliance repair technician, you can quickly determine whether your microwave needs to be replaced or repaired.
From there, you will either agree on a plan to repair your microwave or start on a quest for a new one. Use this opportunity to think about the kind of features you might like in a new microwave and how to improve on your current kitchen experience. Our appliance repair team is happy to answer any questions you might have regarding your microwave or any other home appliances you may be concerned about. Contact us today to schedule a consultation to find your appliance solutions.
You must be logged in to post a comment. Appliance Express. June 16, Microwave Repair. When to Repair Your Microwave The first question is whether your microwave can be repaired and how much effort it will take to repair it. Surface-Level Problems Another easily fixable problem is issues with the surface of your microwave. A Small Malfunction The smaller the problem, the less likely the repair will be an issue.
When to Replace Your Microwave Of course, not all microwave malfunctions were meant to be fixed. Microwave is Over 6 Years Old The first indicator that your microwave is better off replaced is the five-year lifespan.
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