Whirlpool Dishwasher F8 E1 Error Code & Loud Noise... | appliancefaults.com

Technical Background:

The F8 E1 error code on a Whirlpool dishwasher typically indicates a drain issue, specifically related to the flow meter or drain pump circuit. The Central Control Unit (CCU) monitors the water flow using the flow meter and the drain pump's performance. If the CCU detects an abnormal flow rate or drain pump malfunction, it triggers the F8 E1 error. The CCU uses a low-voltage DC signal (typically 5V DC) to communicate with these components.

Symptoms:

The US homeowner reports a loud dishwasher accompanied by an F8 E1 error code on the display panel. The dishwasher may not be draining properly, or the cycle may be interrupted.

Possible Causes:

Clogged or restricted drain pump impeller
Failed drain pump motor
Blocked drain hose
Faulty flow meter
Issue with the Central Control Unit (CCU)

Solution:

1

Disconnect power to the dishwasher at the breaker panel.
2

Inspect the drain pump for obstructions. Remove the lower access panel (using a 1/4-inch nut driver) and check the drain pump impeller for debris. Clear any obstructions.
3

Test the drain pump motor windings for continuity using a multimeter. A normal reading is typically between 50-150 Ohms. Replace the drain pump if open or shorted.
4

Check the drain hose for kinks or clogs. Disconnect the hose and flush it out with water.
5

Inspect the flow meter. Using a multimeter, check if the flow meter is sending the correct signal to the CCU. Refer to the service manual for specific voltage/resistance values.
6

If the drain pump, hose, and flow meter are all functioning correctly, the Central Control Unit (CCU) may be faulty and require replacement or reprogramming.
7

Reconnect power and test the dishwasher. Run a diagnostic cycle to confirm the F8 E1 error is resolved.

Safety Warning:

Always disconnect power to the dishwasher at the breaker panel before performing any repairs. Lock Out/Tag Out (LOTO) procedures should be followed to prevent accidental energization. Some components may retain a residual electrical charge even after disconnection.

Prevention:

Regularly clean the dishwasher filter and inspect the drain pump area for debris. Avoid overloading the dishwasher and ensure proper loading to prevent food particles from clogging the drain system. Use a dishwasher cleaner monthly.

Expert Tip:

To access the service mode, press and hold the Start button, then press the following buttons in sequence within 6 seconds: 1-2-3-1-2-3. This will allow you to run diagnostic tests and calibration cycles.

Frequently Asked Questions

•Where is the flow meter located in the dishwasher?

The flow meter is typically located near the water inlet valve or the circulation pump, measuring the water flow into the dishwasher tub. It's usually a small plastic component with a wire harness connected to it.

•What voltage should I expect to see at the drain pump connector?

The drain pump is typically powered by 120V AC. Use a multimeter to check for 120V AC at the drain pump connector when the dishwasher is attempting to drain.

•How do I clear the error code after fixing the issue?

After fixing the underlying issue, you can usually clear the error code by running a diagnostic cycle or by disconnecting power to the dishwasher for several minutes, then reconnecting it. If the issue is resolved, the error code should not reappear.

Whirlpool Dishwasher F8 E1 Error Code & Loud Noise Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where is the flow meter located in the dishwasher?

•What voltage should I expect to see at the drain pump connector?

•How do I clear the error code after fixing the issue?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: