How do I get to the thermal fuse on Whirlpool electric dryer LER4634EQ0
All the heating and temperature control components are located in the back of the dryer. To access, unplug the dryer and remove the exhaust vent hose. Turn the the dryer around so you can view the back and remove the back panel. With the panel removed, the component locations are as follows:
1. Heating element - located inside the heater box. If bad, the dryer will run, but will not heat. A good reading is about 9 to 13 ohms.
2. Thermal Cut-Out (TCO) - located on the outside of the heater box on the end opposite the heating element terminals. If bad, the dryer will run, but will not heat. A good reading is a short (0 ohms).
3. Hi-Limit Thermostat - located on the outside of the heater box adjacent to the heating element terminals. It works in conjunction with the TCO to help regulate the drum internal temperature. A good reading is a short (0 ohms).
NOTE: If either the TCO or Hi-Limit Thermostat are found to be defective, it is recommended that you replace BOTH components to prevent premature failure. These two components are commonly sold as a set.
1. Thermal Fuse - located on the blower fan housing. It is a small white plastic looking component with two wires attached. If defective, the dryer will not run at all. If the component is good it should read a short (0 ohms).
2. Internal Bias Thermostat - located on the blower fan housing adjacent to the Thermal Fuse. It has four wires attached to it.
NOTE: All resistance checks should be performed with the component terminal wires disconnected to prevent false readings.
If you have any questions, you can refer to searspartsdirect.com for some helpful exploded view diagrams to assist you. The components I mention are listed under the "Bulkhead" heading as follows:
Item 6 - TCO/Hi-Limit Thermostat replacement kit
Item 15 - Hi-Limit Thermostat sold separately
Item 17 - Heating Element
Item 23 - Thermal Fuse
Item 24 - Internal Bias Thermostat
If you need further assistance, please let me know. I hope this helps you.
Sep 23, 2009 |