Roper Dryer Clicking Sound When Starting: Troubleshooting... | appliancefaults.com

Technical Background:

Modern dryers use a Main Control Unit (MCU) to manage the drying cycles. When the start button is pressed, the MCU checks for safety conditions like door switch status and thermal fuse continuity. If these checks pass, the MCU sends a voltage signal (typically 120V AC) to the motor relay, engaging the motor. A clicking sound often indicates a relay attempting to engage or a lack of sufficient voltage reaching the motor.

Symptoms:

The Roper dryer makes a clicking sound when the start button is pressed, but the drum does not rotate, and the drying cycle does not initiate.

Possible Causes:

Defective door switch
Faulty start switch
Failed thermal fuse
Worn or broken drive belt
Malfunctioning motor relay
Jammed blower wheel

Solution:

1

Disconnect power to the dryer at the breaker panel (LOTO).
2

Remove the rear access panel using a 1/4-inch nut driver.
3

Inspect the thermal fuse for continuity using a multimeter. A reading of 0 ohms indicates a good fuse; infinite resistance means it's blown. Replace if necessary.
4

Check the drive belt for breaks or excessive wear. Replace if damaged.
5

Access the motor and test the start winding using a multimeter. Consult the wiring diagram for proper resistance values. If the winding is open, the motor needs replacement.
6

Verify the door switch is functioning correctly with a multimeter. It should show continuity when the door is closed.
7

Ensure the blower wheel is free from obstructions. Remove any lint or debris.

Safety Warning:

Disconnect the power supply to the dryer before performing any repairs. Use Lock-Out/Tag-Out (LOTO) procedures to prevent accidental re-energization. The dryer operates on 240V AC, which can cause serious injury or death. If unsure, consult a qualified appliance technician.

Prevention:

Regularly clean the lint filter after each load. Periodically (every 6 months) inspect and clean the dryer vent duct to prevent overheating and lint buildup. Check the drive belt for wear and tear annually.

Expert Tip:

Many Roper dryers have a diagnostic mode. Press and hold the Start/Pause and End of Cycle signal buttons simultaneously for 3 seconds to enter diagnostic mode. This will display error codes on the control panel, which can help pinpoint the problem.

Frequently Asked Questions

•How do I access the thermal fuse on my Roper dryer?

The thermal fuse is typically located on the blower housing in the rear of the dryer. You'll need to remove the rear access panel to access it. It's a small, white or black component with two wires attached.

•What resistance value should I expect when testing the motor windings?

The resistance value varies depending on the motor model. Consult the wiring diagram for your specific dryer model. Typically, the start winding resistance will be a few ohms, while the run winding resistance will be lower, often less than one ohm. An open winding (infinite resistance) indicates a faulty motor.

•How do I properly clean the dryer vent duct?

Disconnect the dryer vent from the dryer and the wall. Use a dryer vent cleaning brush kit to remove lint buildup inside the duct. You can also use a vacuum cleaner with a hose attachment to remove loose lint. Ensure the duct is reconnected securely to prevent leaks.

Roper Dryer Clicking Sound When Starting: Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the thermal fuse on my Roper dryer?

•What resistance value should I expect when testing the motor windings?

•How do I properly clean the dryer vent duct?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: