Whirlpool Washer F9 E1 Error: Drain Pump Running... | appliancefaults.com

Technical Background:

The F9 E1 error code on a Whirlpool washer typically indicates a problem with the drain pump circuit. The main control unit (MCU) monitors the drain pump relay. If the MCU detects that the drain pump is activated unexpectedly (or running continuously), it triggers the F9 E1 fault. Voltage is supplied to the drain pump motor from the MCU via a relay.

Symptoms:

The homeowner reports a Whirlpool washing machine displaying an F9 E1 error code. The drain pump is running continuously, even when the washer is turned off.

Possible Causes:

Faulty drain pump relay on the control board
Blockage in the drain hose or drain pump
Defective pressure sensor
Shorted wiring in the drain pump circuit
Corrupted software on the main control unit (MCU)

Solution:

1

Disconnect power to the washer at the breaker panel.
2

Inspect the drain hose for kinks or obstructions. Clear any blockages.
3

Access the drain pump (usually located at the bottom front or rear of the washer) and check for debris. Remove any obstructions.
4

Using a multimeter, check the voltage to the drain pump with the washer off. It should read 0V AC. If voltage is present, the control board may be faulty.
5

Inspect the wiring harness and connections to the drain pump and control board for shorts or damage. Repair or replace as necessary. Use wire strippers, crimpers, and electrical tape as needed.
6

If the wiring and pump appear to be in good condition, replace the main control board.
7

After replacing the control board, run a calibration cycle to ensure proper operation. Consult the service manual for specific calibration procedures.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lock Out/Tag Out (LOTO) procedures should be followed. High voltage is present within the appliance.

Prevention:

Regularly inspect and clean the drain pump filter to prevent debris buildup. Avoid overloading the washer, as this can strain the drain pump. Use the correct amount of HE detergent to prevent excessive suds.

Expert Tip:

Many Whirlpool washers have a diagnostic mode. To access it, rapidly press a sequence of buttons (varies by model, but often involves pressing the start/pause button, then a combination of other buttons). In diagnostic mode, you can often clear error codes and run individual component tests, including the drain pump.

Follow-up Questions:

Frequently Asked Questions

•How do I access the drain pump on my Whirlpool washer?

The drain pump is usually located behind an access panel at the bottom front or rear of the washer. You may need a 1/4-inch nut driver or a Phillips head screwdriver to remove the panel. Refer to your washer's service manual for specific instructions.

•How do I test the drain pump for continuity?

Disconnect the power to the washer. Disconnect the wires from the drain pump. Set your multimeter to the ohms setting. Place the multimeter probes on the drain pump terminals. A reading between 5 and 20 ohms typically indicates a good motor winding. An open circuit (OL) indicates a faulty motor.

•Where can I find the service manual for my specific Whirlpool washer model?

You can often find service manuals online by searching for your washer's model number followed by 'service manual' or 'repair manual'. Websites like AppliancePartsPros.com or RepairClinic.com may have them available for download. Alternatively, you can contact Whirlpool directly or a local appliance repair shop.

Whirlpool Washer F9 E1 Error: Drain Pump Running Constantly - Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the drain pump on my Whirlpool washer?

•How do I test the drain pump for continuity?

•Where can I find the service manual for my specific Whirlpool washer model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: