Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeGET PRO PRICING
Video & Articles: Appliance & Equipment RepairWhirlpool Microwave Oven/Hood Combo Thermistor Board Replacement W10536989 
Whirlpool Microwave Oven/Hood Combo Thermistor Board Replacement W10536989
Skill Level
Total Parts Cost
$22.84Estimated Savings
$112.5005:13
- Description
This video provides step-by-step repair instructions for replacing the thermistor board on a Whirlpool microwave oven/hood combo (Model #WMH73521CS6). The most common reason for replacing this part is if the microwave will not cook at all.
All of the information for this video is applicable to the following brands:
Whirlpool
All of the information for this video is applicable to the following brands:
Whirlpool
Step By Step Instructions
1
Whirlpool Microwave Oven/Hood Combo - WMH73521CS6
2
Microwave Oven Thermistor Board Replacement
3
Tools needed: Phillips-head screwdriver
4
Shock Hazard
5
Be sure to unplug the power cord or shut off the power supply.
6
Use a Phillips-head screwdriver to unthread the three screws securing the top grille.
7
Pull the grille down from the top to detach.
8
Next, unthread the screw securing the control board cover to the frame.
9
Lift the cover up to detach.
10
Disconnect the thermistor wire connecter from the board.
11
Next, unthread the screws securing the oven?s bottom panel.
12
Open the turntable motor terminal cover and disconnect the wires.
13
Unhook the wires from the retainer and disconnect the wire connecter to fully lower the bottom panel.
14
Now unthread the thermistor holder mounting screw and you can fully remove the holder.
15
Next, unthread the screws to release the cover.
16
Depress the tabs to fully release the old thermistor board.
17
Install the new thermistor board by feeding the wire through the holder and snap the board into place.
18
Close the cover and secure it with the screws.
19
Feed the wire through the hole in the bottom of the appliance.
20
Secure the wire in the retainer and realign the holder.
21
Thread the mounting screw.
22
Reinstall the bottom panel by reconnecting the wire connecter and hooking the wires in the retainer.
23
Reconnect the motor wires to the terminals, then align the terminal cover and snap it closed.
24
Now fully reposition the bottom panel and rethread the screws to secure.
25
Connect the new thermistor wire connecter to the control board, then insert the control board cover tabs into the slots in the frame.
26
Thread the screw to secure.
27
Now align the grille tabs with the slots in the frame and snap the grille into position.
28
Rethread the three screws.
29
Having a magnetized screwdriver will make it easier to rethread the screw on the right.
30
Plug the power cord back in or restore the power supply and the microwave oven should be ready for use.
Description
This video provides step-by-step repair instructions for replacing the thermistor board on a Whirlpool microwave oven/hood combo (Model #WMH73521CS6). The most common reason for replacing this part is if the microwave will not cook at all.
All of the information for this video is applicable to the following brands:
Whirlpool
All of the information for this video is applicable to the following brands:
Whirlpool
Step-By-Step Instructions
1
Whirlpool Microwave Oven/Hood Combo - WMH73521CS6
2
Microwave Oven Thermistor Board Replacement
3
Tools needed: Phillips-head screwdriver
4
Shock Hazard
5
Be sure to unplug the power cord or shut off the power supply.
6
Use a Phillips-head screwdriver to unthread the three screws securing the top grille.
7
Pull the grille down from the top to detach.
8
Next, unthread the screw securing the control board cover to the frame.
9
Lift the cover up to detach.
10
Disconnect the thermistor wire connecter from the board.
11
Next, unthread the screws securing the oven?s bottom panel.
12
Open the turntable motor terminal cover and disconnect the wires.
13
Unhook the wires from the retainer and disconnect the wire connecter to fully lower the bottom panel.
14
Now unthread the thermistor holder mounting screw and you can fully remove the holder.
15
Next, unthread the screws to release the cover.
16
Depress the tabs to fully release the old thermistor board.
17
Install the new thermistor board by feeding the wire through the holder and snap the board into place.
18
Close the cover and secure it with the screws.
19
Feed the wire through the hole in the bottom of the appliance.
20
Secure the wire in the retainer and realign the holder.
21
Thread the mounting screw.
22
Reinstall the bottom panel by reconnecting the wire connecter and hooking the wires in the retainer.
23
Reconnect the motor wires to the terminals, then align the terminal cover and snap it closed.
24
Now fully reposition the bottom panel and rethread the screws to secure.
25
Connect the new thermistor wire connecter to the control board, then insert the control board cover tabs into the slots in the frame.
26
Thread the screw to secure.
27
Now align the grille tabs with the slots in the frame and snap the grille into position.
28
Rethread the three screws.
29
Having a magnetized screwdriver will make it easier to rethread the screw on the right.
30
Plug the power cord back in or restore the power supply and the microwave oven should be ready for use.
Applicable Product Model
Parts Needed
Thermistor
$22.84
Total$0.00
Related Articles & Videos
02:13
Part Replacement
Whirlpool Microwave Oven/Hood Combo Air Damper Installation W10843943
04:10
Part Replacement
Whirlpool Microwave Oven/Hood Combo Mounting Plate Replacement W11025649
02:58
Part Replacement
Whirlpool Microwave Oven/Hood Combo Control Board Assembly Replacement W10893407
02:37
Part Replacement
Whirlpool Microwave Oven/Hood Combo Line Fuse Replacement #W10138793
08:32
Part Replacement
Whirlpool Microwave Oven/Hood Combo Outer Door Glass Replacement WPW10478675
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