Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeGET PRO PRICING
Video & Articles: Appliance & Equipment RepairWhirlpool Dishwasher High Limit Thermostat Replacement #WP661566
Whirlpool Dishwasher High Limit Thermostat Replacement #WP661566
Skill Level
Total Parts Cost
$32.42Estimated Savings
$112.5007:15
- Description
This video provides step-by-step instructions for replacing the high limit thermostat on Whirlpool dishwashers. The most common reason for replacing the thermostat is if the dishwasher will not complete a cycle.
All of the information in this thermostat replacement video is applicable to the following brands: Whirlpool
Tools used: pliers, flat head screwdriver, 1/4" nut driver
All of the information in this thermostat replacement video is applicable to the following brands: Whirlpool
Tools used: pliers, flat head screwdriver, 1/4" nut driver
Step By Step Instructions
1
For easier access when replacing the high limit thermostat, we recommend uninstalling the dishwasher.
2
Shut off the water supply valve.
3
Using a flat-head screwdriver, rotate the lower access panel fasteners counter-clockwise a quarter-turn to detach.
4
Remove the access panel and the attached insulation.
5
Use channel-lock pliers to unthread the water supply line elbow fitting from the inlet valve be prepared for some water to spill.
6
Use a quarter-inch hex-head nut driver or a t-20 torx bit to unthread the screw securing the terminal box cover.
7
Remove the cover.
8
Note the orientation of the power wires then untwist the wire nuts to disconnect the wires.
9
Unthread the screw to release the grounding wire.
10
Unthread the strain relief nut and detach the strain relief and power wires from the terminal box.
11
Next, disconnect the drain hose from the sink drain or garbage disposer and feed it through the cabinet.
12
Open the dishwasher door and remove the mounting bracket screws.
13
To move the dishwasher, you may need to adjust the legs to lower the appliance.
14
Now gently pull the dishwasher away from the cabinet.
15
Detach the insulation and set it aside.
16
Tip the dishwasher back and rest it on a towel or blanket.
17
Use a quarter-inch socket or nut driver to unthread the screw securing the high limit thermostat mounting bracket to the base of the tub.
18
Disconnect the wires and remove the isolator.
19
Rotate the old thermostat to remove it from the bracket.
20
Install the new high limit thermostat by inserting it into the bracket.
21
Align the isolator and connect the wires to the terminals.
22
Realign the mounting bracket on the base of the tub and tighten the screw to secure.
23
Return the dishwasher to its upright position.
24
Replace the insulation and secure it at both the left and right rear corners.
25
Confirm that the end of the drain hose is accessible through the cabinet wall then gently slide the dishwasher back into the cabinet.
26
Adjust the leveling legs if necessary.
27
Replace the screws to secure the mounting brackets to the cabinet or countertop.
28
Feed the drain hose through the cabinet and connect it to the sink drain or disposer.
29
Make sure the hose is elevated above the connection point.
30
Fully position the wires and strain relief in the terminal box then thread and tighten the strain relief nut.
31
Secure the grounding wire with the screw.
32
Join the black wires together and the white wires together and secure them with the wire nuts.
33
With the wires positioned inside the terminal box, realign the cover and rethread the screw to secure.
34
Reconnect the water supply line fitting to the inlet valve.
35
Reposition the access panel, making sure the attached insulation does not interfere with the float assembly and the lower edge of the panel touches the floor.
36
Secure the panel by rotating the fasteners clockwise a quarter turn.
37
With the repair completed, turn the water supply back on as well as the power and your dishwasher should be ready for use.
Description
This video provides step-by-step instructions for replacing the high limit thermostat on Whirlpool dishwashers. The most common reason for replacing the thermostat is if the dishwasher will not complete a cycle.
All of the information in this thermostat replacement video is applicable to the following brands: Whirlpool
Tools used: pliers, flat head screwdriver, 1/4" nut driver
All of the information in this thermostat replacement video is applicable to the following brands: Whirlpool
Tools used: pliers, flat head screwdriver, 1/4" nut driver
Step-By-Step Instructions
1
For easier access when replacing the high limit thermostat, we recommend uninstalling the dishwasher.
2
Shut off the water supply valve.
3
Using a flat-head screwdriver, rotate the lower access panel fasteners counter-clockwise a quarter-turn to detach.
4
Remove the access panel and the attached insulation.
5
Use channel-lock pliers to unthread the water supply line elbow fitting from the inlet valve be prepared for some water to spill.
6
Use a quarter-inch hex-head nut driver or a t-20 torx bit to unthread the screw securing the terminal box cover.
7
Remove the cover.
8
Note the orientation of the power wires then untwist the wire nuts to disconnect the wires.
9
Unthread the screw to release the grounding wire.
10
Unthread the strain relief nut and detach the strain relief and power wires from the terminal box.
11
Next, disconnect the drain hose from the sink drain or garbage disposer and feed it through the cabinet.
12
Open the dishwasher door and remove the mounting bracket screws.
13
To move the dishwasher, you may need to adjust the legs to lower the appliance.
14
Now gently pull the dishwasher away from the cabinet.
15
Detach the insulation and set it aside.
16
Tip the dishwasher back and rest it on a towel or blanket.
17
Use a quarter-inch socket or nut driver to unthread the screw securing the high limit thermostat mounting bracket to the base of the tub.
18
Disconnect the wires and remove the isolator.
19
Rotate the old thermostat to remove it from the bracket.
20
Install the new high limit thermostat by inserting it into the bracket.
21
Align the isolator and connect the wires to the terminals.
22
Realign the mounting bracket on the base of the tub and tighten the screw to secure.
23
Return the dishwasher to its upright position.
24
Replace the insulation and secure it at both the left and right rear corners.
25
Confirm that the end of the drain hose is accessible through the cabinet wall then gently slide the dishwasher back into the cabinet.
26
Adjust the leveling legs if necessary.
27
Replace the screws to secure the mounting brackets to the cabinet or countertop.
28
Feed the drain hose through the cabinet and connect it to the sink drain or disposer.
29
Make sure the hose is elevated above the connection point.
30
Fully position the wires and strain relief in the terminal box then thread and tighten the strain relief nut.
31
Secure the grounding wire with the screw.
32
Join the black wires together and the white wires together and secure them with the wire nuts.
33
With the wires positioned inside the terminal box, realign the cover and rethread the screw to secure.
34
Reconnect the water supply line fitting to the inlet valve.
35
Reposition the access panel, making sure the attached insulation does not interfere with the float assembly and the lower edge of the panel touches the floor.
36
Secure the panel by rotating the fasteners clockwise a quarter turn.
37
With the repair completed, turn the water supply back on as well as the power and your dishwasher should be ready for use.
Applicable Product Model
Related Articles & Videos
00:58
Part Replacement
Whirlpool Dishwasher Front Dish Rack Stop Clip Replacement #WPW10082861
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