Introduction
Use this guide to test the thermal fuse on your Whirlpool Duet WED87HED Dryer, and replace it if necessary.
While this guide is listed as difficult, this is more of a reflection of length, and a few tricky steps, rather than a need for special skills.
The thermal fuse protects your dryer (and clothes) from overheating. The dryer will not start if the thermal fuse is blown.
It's easiest to test the fuse while it's in place on the blower housing. Replacement is very simple if the fuse is blown.
What you need
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Use a 5/16 inch nut driver to remove the two 15.7 mm-long screws securing the top panel to the rear panel bracket.
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Grasp the top and slide it 1/2 to 1 inch toward the rear of the machine.
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Use a 1/4 inch nut driver to remove the two 16.3 mm‑long sheet metal screws located at each end of the control panel.
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Lift the control panel up and tilt it away from the chassis to remove it.
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Use a small flat blade screwdriver or a spudger to unlatch both sides of the door switch connector.
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Unplug the connector.
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Use a 1/4 inch nut driver to remove the three upper front panel 16.4 mm-long sheet metal screws.
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Tilt the machine backwards and prop it securely, or have a friend hold it.
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Use a 1/4 inch nut driver to remove the four sheet metal screws on the bottom edge of the panel:
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Two 16.4 mm screws
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Two 13 mm screws
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Pull the bottom of the panel away from the chassis about two to three inches.
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Lift the front panel off the small tabs on the chassis near the top of the panel and remove it.
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Use a 5/16 inch nut driver to remove the 16.2 mm-long cover plate screw.
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Use a Phillips driver or a 1/4 inch nut driver to remove the three 21.4 mm-long screws.
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Use a 5/16 inch hex driver to remove the 16.5 mm-long green ground screw.
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Use a Phillips driver to remove the two 15.3 mm‑long cord terminal block screws.
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Use a 1/4 inch nut driver to remove the eleven rear panel screws.
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Ten 20 mm-long screws
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One 12.9 mm-long screw under the water inlet.
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Lift the panel about 1/2 inch and tilt it to the rear to release it from the vent pipe.
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Slide the panel off the vent pipe and remove it.
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Make sure that the vent pipe is fitted into the collar on the panel.
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Make sure the tabs at the bottom are aligned to the bottom rim of the chassis.
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Position the panel so its screw holes match with the chassis.
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Pull the lint filter up out of the lint filter slot to remove it.
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Use a 1/4 inch nut driver to remove the 16.4 mm‑long mounting screws securing the lint filter housing.
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Pull the filter housing outward from the chassis and down to remove it.
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Squeeze the locking tabs on the moisture sensor connector.
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Disconnect the connector.
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Disconnect all of the connectors on the main board front half.
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Use a 1/4 inch nut driver to remove the 12.8 mm‑long sheet metal screw that retains the main board to the main board bracket.
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Lift the rear corner of the main board nearest to the side walls of the chassis.
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Slide the main board toward the front of the dryer to release the tabs securing it to the main board bracket.
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Use a 1/4 inch nut driver to unfasten the 16.4 mm‑long sheet metal screw holding the main board bracket.
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Lift off the main board bracket from the chassis and turn it so the bottom is exposed.
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Using long nose or slip joint pliers, pinch the locking wings of the harness retainer clamp.
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Separate the harness from the main board bracket and remove the main board bracket.
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Use a 1/4 inch nut driver to remove the two screws securing the upper front bulkhead to the front of the chassis.
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One 16.4 mm-long sheet metal screw
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One 19.8 mm-long sheet metal screw
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Use a 1/4 inch nut driver to remove the two 16.5 mm‑long sheet metal screws securing the top plastic portion to the upper front bulkhead.
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Push the idler arm (the metal upside-down "L") up to relieve the tension on the drive belt.
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Remove the belt from the motor pulley.
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Gently lower the idler arm until it rests parallel to the dryer floor.
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Use a 1/4 inch nut driver to remove the four screws securing the lower front bulkhead.
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Two 16.1 mm-long sheet metal screws on the left side of the lower front bulkhead.
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Two 13.2 mm-long sheet metal screws on the right side of the lower front bulkhead.
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While supporting the drum, lift the lower front bulkhead off of the hooks on the chassis.
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Use the belt to lift the drum a few inches.
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Swing the drum out of the front of the dryer.
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Disconnect the two spade connectors attached to the thermal fuse.
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Set your multimeter to the ohms (Ω) setting. If your meter has more than one scale for ohms, set it to (Rx1).
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Touch the probes to the contacts on the thermal fuse. The reading should be less than one Ω. The photo shows the reading for a good thermal fuse.
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Use a 1/4 inch nut driver to remove the 12.9 mm‑long sheet metal screw securing the thermal fuse.
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Slightly lift the screw end of the fuse first and then slide the tab out of the mounting hole.
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Lift the thermal fuse out of the mounting hole and replace it.
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Slightly lift the screw end of the fuse first and then slide the tab out of the mounting hole.
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Lift the thermal fuse out of the mounting hole and remove it.
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To reassemble your device, follow these instructions in reverse order.
Repair didn’t go as planned? Ask our Answers community for help.
To reassemble your device, follow these instructions in reverse order.
Repair didn’t go as planned? Ask our Answers community for help.
