Remove top lid by pushing tab on either side with a putty knife. Disconnect the 2 wire carriages on right. Remove one phillips head screw on each side that holds front panel to dryer body. Remove front panel by using flat head screwdriver to pry panel from body. Remove thermostat located on bottom right attached to front of motor on a plastic body by removing two phillips head screws. Disconnect wires and place on new part.
I removed the front, top and back panels of the dryer, installed belt around drum and through the pulley system so the belt was snug, replaced all screws and panels, and done.
E66 Error code, Door Open. Dryer shuts off on high temperature
Unplugged dryer. Removed top panel (2 screws top back of dryer). Removed control panel ( Unplugged from control board and 2 screws) Removed front panel with door ( Unplugged light from control board, door switch at connector, and 4 screws) Removed Control Thermister from dryer exhaust blower housing located bottom front of dryer ( Unplugged 2 wires and removed 2 screws ) Installed new Control Thermister and replaced all screws and panels in reverse order. Note: Noticed connector for door switch seemed a little loose when connected correctly. Used electrical tape to reinforce connection. Plugged dryer back in and checked operation. Dryer has been used approximately 10 times since repair with no issues.
I replaced the Control Thermistor (part # PS1149368) by removing the two screws on the bottom of the lower panel below the door. You will see the Control Thermistor just below and to the left of the discharge chute. Remove the two screws holding the Control Thermistor in place. Disconnect the two wire and reconnect to new Control Thermistor. Replace screws in reverse order of above.
I researched possible causes on line and watched a PartsSelect video on YouTube on how to test. I ended up misreading test results and ordered the High Limit Thermostat but subsequently realized problem was the Terminal Block. No problem, PartsSelect took back the Thermostat (I hadn't installed it) and shipped me the Terminal Block. My dryer was back up and running in less than 7 days from initial analysis to installation of Terminal Block. Instructions that came in confirmation email for installation were perfect and easy to follow. Total cost with new power cord from Home Depot was less than $50 vs a quoted service call of $175+ parts from local electrician.
