Frequently Asked Questions
•What is the resistance I should expect to measure across the moisture sensor bars when the dryer is empty?
When the dryer is empty and dry, you should expect to see very high resistance (near infinite or open circuit) across the moisture sensor bars. When wet, it should be a low resistance.
•Where can I find the wiring diagram for my Roper dryer model?
The wiring diagram is usually located inside the dryer, often attached to the back panel or inside the control panel housing. It may also be available online through appliance parts websites or service manuals.
•How do I know if the control board is sending the correct voltage to the moisture sensor?
Use a multimeter to measure the voltage at the designated test points on the control board for the moisture sensor circuit. The wiring diagram will indicate the location of these test points. Typically, you should see around 5V DC. If the voltage is significantly different or absent, the control board is likely faulty.