Whirlpool Washer: Clicking 3 Times and Sensing Light... | appliancefaults.com

Technical Background:

The Main Control Unit (MCU) controls the entire washing process. It monitors the lid switch, motor, shift actuator, and drain pump. The clicking sound is often a relay on the MCU trying to activate a component. The sensing light flashes indicate an error code stored within the MCU's memory, indicating a problem with one of the connected components or a system malfunction. Low voltage or a disconnected component can trigger this error.

Symptoms:

My Whirlpool washer starts to fill with water, then it clicks three times, and the sensing light starts flashing. The washer won't start the wash cycle.

Possible Causes:

Lid switch malfunction
Drive motor issue
Faulty shift actuator
Main Control Unit (MCU) error
Obstruction in the drain pump
Wiring harness problem

Solution:

1

Unplug the washer from the 120V AC outlet.
2

Inspect the lid switch for proper function. Use a multimeter to check continuity when the lid is closed. The switch should read continuity when the lid is closed and no continuity when open.
3

Examine the drive motor and motor capacitor. Look for signs of burning or damage. Test the capacitor with a multimeter to ensure it holds a charge.
4

Check the shift actuator for proper operation. Listen for clicking sounds. If faulty, replace it.
5

Inspect the drain pump for obstructions. Remove any debris and ensure the impeller spins freely.
6

Check the wiring harness for loose connections or damaged wires. Repair or replace as needed. Use a 1/4-inch nut driver to access connections.
7

If all other components are good, the Main Control Unit (MCU) may be faulty. Replace the MCU.

Safety Warning:

Disconnect power to the washer before performing any repairs. Lock Out/Tag Out (LOTO) procedures should be followed. High voltage is present in the washer's electrical components. Use caution when testing.

Prevention:

Regularly clean the lint filter. Avoid overloading the washer. Inspect hoses for wear and tear every six months. Use the correct type and amount of detergent. Check the drain pump filter every 3 months.

Expert Tip:

To enter diagnostic mode on some Whirlpool washers, press and hold the START/PAUSE button for 3 seconds, then press POWER, START/PAUSE, POWER, START/PAUSE in rapid succession. This allows you to view error codes on the display panel.

Frequently Asked Questions

•How do I test the lid switch with a multimeter?

Unplug the washer. Set your multimeter to continuity testing mode. Disconnect the wires from the lid switch. Place the multimeter probes on the lid switch terminals. With the lid closed (or the switch manually activated), the multimeter should show continuity (a reading of near zero ohms). With the lid open, it should show no continuity (an open circuit).

•Where is the shift actuator located, and how do I replace it?

The shift actuator is typically located on the bottom of the washer near the drive motor. To replace it, unplug the washer, remove the rear access panel. Disconnect the wiring harness from the shift actuator. Remove the mounting screws (usually with a 5/16-inch socket). Install the new shift actuator and reassemble the washer in reverse order.

•How do I interpret the error codes displayed in diagnostic mode?

Once you're in diagnostic mode (refer to the expert tip), the washer will display error codes as flashing lights or numbers on the control panel. You'll need to consult the washer's service manual or the manufacturer's website to determine the specific meaning of each code. Error codes will help pinpoint the component causing the problem.

Whirlpool Washer: Clicking 3 Times and Sensing Light Flashing - Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the lid switch with a multimeter?

•Where is the shift actuator located, and how do I replace it?

•How do I interpret the error codes displayed in diagnostic mode?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: