How to Fix a Microwave

Steps on how to replace a fuse

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How to Fix a Microwave
13 Steps
Supplies
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1
A few days ago, we were making popcorn and 3 seconds into the cycle, our microwave shut off. The outlet still had power but nothing would turn on.  After some searching it seemed like a blown fuse

A few days ago, we were making popcorn and 3 seconds into the cycle, our microwave shut off. The outlet still had power but nothing would turn on. After some searching it seemed like a blown fuse

2
I supported the microwave with some jackstands

I supported the microwave with some jackstands

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3
Then unplugged and unscrewed it from the top (doesn't show in the pic unless you click it to make it larger)

Then unplugged and unscrewed it from the top (doesn't show in the pic unless you click it to make it larger)

4
I lowered it down and off of the wall bracket

I lowered it down and off of the wall bracket

5
After removing the 30 screws that held the cover on, this is what I'm looking at

After removing the 30 screws that held the cover on, this is what I'm looking at

6
Most of the time if you follow the power cord, you'll find the fuse. It's on the bottom of this circuit board

Most of the time if you follow the power cord, you'll find the fuse. It's on the bottom of this circuit board

7
My microwave uses a ceramic 250v 20a fuse. Yours may be different but the fuse will be marked as to what it is

My microwave uses a ceramic 250v 20a fuse. Yours may be different but the fuse will be marked as to what it is

8
I removed the board to inspect for any damage

I removed the board to inspect for any damage

9
Front and back

Front and back

10
A quick phone call to radio shack and the verified that they had them in stock. This 4 pack cost $3.75

A quick phone call to radio shack and the verified that they had them in stock. This 4 pack cost $3.75

11
Popped the new fuse in and replace the board

Popped the new fuse in and replace the board

12
I ran an extension cord to make sure it worked before I put it all back together. I warmed a cup of water just to make sure

I ran an extension cord to make sure it worked before I put it all back together. I warmed a cup of water just to make sure

13
Reverse the directions to put it all back together and feel good about yourself for saving money!

Reverse the directions to put it all back together and feel good about yourself for saving money!

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