GE Washer Error Code 18: Drain Pump Filter Blockage... | appliancefaults.com

Technical Background:

error code 18 on GE washers indicates a problem with the drain system. The MCU monitors the drain pump motor current. If the current is outside the acceptable range, the MCU assumes a fault and displays the error. The drain pump receives 120V AC from the MCU when activated.

Symptoms:

The GE washer displays error code 18 on the control panel and fails to drain water properly. The washer may stop mid-cycle or after completing the wash cycle with water remaining in the drum. You might also hear a humming noise from the drain pump area.

Possible Causes:

Blocked drain pump filter.
Kinked or obstructed drain hose.
Faulty drain pump.
Clogged standpipe.
MCU (Main Control Unit) malfunction.

Solution:

1

Disconnect power to the washer at the breaker panel (Lock Out Tag Out). Verify no voltage at the outlet with a multimeter.
2

Locate and access the drain pump filter (typically behind a small access panel at the bottom front of the washer). Use a flathead screwdriver to open the panel.
3

Drain any remaining water from the drain pump housing into a shallow pan.
4

Remove and clean the drain pump filter. Inspect for damage and replace if necessary.
5

Inspect the drain hose for kinks or obstructions. Disconnect the hose from the standpipe and check for clogs.
6

If the problem persists, test the drain pump motor. With the power OFF, disconnect the drain pump wires. Use a multimeter to check the resistance of the drain pump motor windings. An open or shorted winding indicates a faulty pump. Replace if necessary.
7

After repairs, plug the washer into the outlet. Run a test cycle to ensure the washer drains properly and the error code is cleared.

Safety Warning:

Disconnect power to the washer at the breaker panel before performing any repairs. Use Lock Out Tag Out procedures to prevent accidental energization. High voltage is present inside the washer; use caution when working with electrical components.

Prevention:

Regularly clean the drain pump filter every 3 months to prevent blockages. Avoid overloading the washer and ensure proper drainage by keeping the drain hose free of kinks and obstructions.

Expert Tip:

After clearing the blockage, enter service mode by pressing and holding the 'Start' and 'Select' buttons simultaneously for 3 seconds. Then run a drain pump test cycle to verify proper function and clear the error code from the memory.

Frequently Asked Questions

•How do I test the drain pump motor with a multimeter?

Disconnect the washer from power. Disconnect the wires to the drain pump. Set your multimeter to measure resistance (Ohms). Place the multimeter probes on the drain pump motor terminals. A typical resistance reading is between 5 and 20 Ohms. An open circuit (infinite resistance) or a short circuit (0 Ohms) indicates a faulty motor.

•Where is the drain pump located on my GE washer?

The drain pump is typically located at the bottom of the washer, either in the front or back. You may need to remove the front or back panel of the washer to access it. Consult your washer's service manual for specific location information.

•What if the error code 18 returns after clearing the blockage?

If the error code returns after cleaning the drain pump filter and checking the drain hose, the drain pump motor itself may be failing. The motor might be intermittently stalling or drawing excessive current. Consider replacing the drain pump. Also, check the wiring harness and connections to the drain pump for any signs of damage or corrosion.

GE Washer Error Code 18: Drain Pump Filter Blockage Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I test the drain pump motor with a multimeter?

•Where is the drain pump located on my GE washer?

•What if the error code 18 returns after clearing the blockage?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: