Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeGET PRO PRICING
Video & Articles: Appliance & Equipment RepairGE Microwave Won't Work? Magnetron Thermal Fuse #WB27X10166
GE Microwave Won't Work? Magnetron Thermal Fuse #WB27X10166
Skill Level
Total Parts Cost
$40.98Estimated Savings
$112.5006:35
- Description
This video provides step-by-step repair instructions for replacing the Magnetron thermal fuse on a GE microwave. The most common reasons for replacing the thermal fuse are when the microwave doesn’t heat or isn’t working at all.
All of the information for this thermal fuse replacement video is applicable to the following brands:
GE, Hotpoint, Kenmore, RCA
Tools needed: multi screwdriver, Phillips head bit, flat head bit
All of the information for this thermal fuse replacement video is applicable to the following brands:
GE, Hotpoint, Kenmore, RCA
Tools needed: multi screwdriver, Phillips head bit, flat head bit
Step By Step Instructions
1
Because of the high voltage and high current used by microwave ovens, be aware that repairing this appliance poses a substantial risk for injury or death if precautions are not taken.
2
You should always unplug the microwave oven before you attempt any disassembly.
3
To replace the magnetron thermal fuse in your microwave, you will need to uninstall the appliance.
4
To do this, first remove the screws on the bottom of the appliance to release the bottom panel.
5
Next, disconnect the wire connectors from the light sockets and detach the bottom panel completely.
6
Now, have an assistant support the microwave while you remove the mounting bolts from the upper cabinet.
7
Carefully tilt the microwave down and pull the power cord through the hole in the cabinet.
8
Now, lift the microwave off the rear mounting bracket and set it on a sturdy surface, resting on a towel or blanket.
9
Remove all the screws securing the cover.
10
Pull the cover back and off.
11
Since the high voltage capacitor may retain a charge even after the microwave has been unplugged, avoid contact with the capacitor when removing and replacing internal components.
12
Now, remove the screw securing the vent blower assembly.
13
Note the orientation of the blower outlets then disconnect the wire harness and remove the assembly.
14
Now remove the screw securing the grill.
15
Slide the grill to the left to release it.
16
Remove all of the screws securing the air duct assembly.
17
Detach the mounting tabs.
18
Release the wires and power cord from the retaining tabs and move the air duct assembly out of the way.
19
You can now disconnect the wires from the old magnetron thermal fuse.
20
Remove the mounting screw and pull the old fuse free.
21
Install the new magnetron thermal fuse by sliding it into place and securing it with the screw.
22
Connect the wires to the new fuse.
23
Secure the wires and power cord under the retaining tabs on the air duct assembly.
24
Reposition the assembly and secure it with the screws.
25
Reposition the grill slide it to the right and replace the screw to secure.
26
Properly reposition the vent blower assembly and replace the screw.
27
Reconnect the wire harness.
28
Reposition the cover by aligning the top edge first.
29
Then push the sides forward making sure the tabs on the frame slide into the slots on the sides of the cover.
30
Replace the screws to secure the cover.
31
Now carefully reposition the microwave on the mounting bracket by hooking the back edge of the appliance on the bracket tabs.
32
Insert the power cord through the hole in the upper cabinet.
33
Lift the microwave up and secure the mounting bolts.
34
Reattach the bottom panel.
35
Reconnect the wires to the light sockets and secure the wires as required.
36
Lift the panel into position and secure the screws.
37
With the repair completed, plug the power cord back in and your microwave oven should be ready for use.
Description
This video provides step-by-step repair instructions for replacing the Magnetron thermal fuse on a GE microwave. The most common reasons for replacing the thermal fuse are when the microwave doesn’t heat or isn’t working at all.
All of the information for this thermal fuse replacement video is applicable to the following brands:
GE, Hotpoint, Kenmore, RCA
Tools needed: multi screwdriver, Phillips head bit, flat head bit
All of the information for this thermal fuse replacement video is applicable to the following brands:
GE, Hotpoint, Kenmore, RCA
Tools needed: multi screwdriver, Phillips head bit, flat head bit
Step-By-Step Instructions
1
Because of the high voltage and high current used by microwave ovens, be aware that repairing this appliance poses a substantial risk for injury or death if precautions are not taken.
2
You should always unplug the microwave oven before you attempt any disassembly.
3
To replace the magnetron thermal fuse in your microwave, you will need to uninstall the appliance.
4
To do this, first remove the screws on the bottom of the appliance to release the bottom panel.
5
Next, disconnect the wire connectors from the light sockets and detach the bottom panel completely.
6
Now, have an assistant support the microwave while you remove the mounting bolts from the upper cabinet.
7
Carefully tilt the microwave down and pull the power cord through the hole in the cabinet.
8
Now, lift the microwave off the rear mounting bracket and set it on a sturdy surface, resting on a towel or blanket.
9
Remove all the screws securing the cover.
10
Pull the cover back and off.
11
Since the high voltage capacitor may retain a charge even after the microwave has been unplugged, avoid contact with the capacitor when removing and replacing internal components.
12
Now, remove the screw securing the vent blower assembly.
13
Note the orientation of the blower outlets then disconnect the wire harness and remove the assembly.
14
Now remove the screw securing the grill.
15
Slide the grill to the left to release it.
16
Remove all of the screws securing the air duct assembly.
17
Detach the mounting tabs.
18
Release the wires and power cord from the retaining tabs and move the air duct assembly out of the way.
19
You can now disconnect the wires from the old magnetron thermal fuse.
20
Remove the mounting screw and pull the old fuse free.
21
Install the new magnetron thermal fuse by sliding it into place and securing it with the screw.
22
Connect the wires to the new fuse.
23
Secure the wires and power cord under the retaining tabs on the air duct assembly.
24
Reposition the assembly and secure it with the screws.
25
Reposition the grill slide it to the right and replace the screw to secure.
26
Properly reposition the vent blower assembly and replace the screw.
27
Reconnect the wire harness.
28
Reposition the cover by aligning the top edge first.
29
Then push the sides forward making sure the tabs on the frame slide into the slots on the sides of the cover.
30
Replace the screws to secure the cover.
31
Now carefully reposition the microwave on the mounting bracket by hooking the back edge of the appliance on the bracket tabs.
32
Insert the power cord through the hole in the upper cabinet.
33
Lift the microwave up and secure the mounting bolts.
34
Reattach the bottom panel.
35
Reconnect the wires to the light sockets and secure the wires as required.
36
Lift the panel into position and secure the screws.
37
With the repair completed, plug the power cord back in and your microwave oven should be ready for use.
Applicable Product Model
Recommended Tools and Accessories
Cooktop Cleaner
$29.50
Total$0.00
Related Articles & Videos
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com