Whirlpool WDTA70SAKZ Dishwasher Error Code F8 E1... | appliancefaults.com

Technical Background:

The F8 E1 error code on a Whirlpool WDTA70SAKZ dishwasher indicates a 'no water detected' fault. The main control unit (MCU) monitors the water level using a flow meter and/or pressure sensor. If the MCU doesn't receive the expected signal within a specific timeframe, it triggers the F8 E1 error, halting operation to prevent damage. The voltage path involves the MCU sending a signal to the water inlet valve, and then monitoring the flow meter or pressure sensor to verify water presence.

Symptoms:

The dishwasher displays an F8 E1 error code. The dishwasher might not fill with water or may stop mid-cycle.

Possible Causes:

Clogged or restricted water inlet valve.
Faulty flow meter.
Defective pressure sensor.
Problem with the drain pump operation.
Issue with the main control board (MCU).
Low water pressure to the home.

Solution:

1

Disconnect power to the dishwasher at the breaker panel.
2

Check the water inlet valve for clogs or restrictions. Disconnect the water supply line and inspect the screen filter. Clean or replace as needed.
3

Use a multimeter to test the water inlet valve solenoid for continuity. A reading of around 1k to 3k ohms is typical. Replace the valve if open or shorted.
4

Inspect the flow meter for damage or debris. Ensure it spins freely. If it's stuck or damaged, replace it.
5

Locate the pressure sensor and check its wiring and connections. Disconnect and reconnect the sensor to ensure a good connection. If the wiring is damaged, repair it.
6

Check the drain pump for obstructions. Remove the pump and inspect it for debris. Test the drain pump windings with a multimeter to ensure it's functioning correctly.
7

If all other components test good, replace the main control board (MCU).

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. High voltage components are present inside the dishwasher. Lock-out/Tag-out (LOTO) procedures should be followed to prevent accidental re-energizing of the circuit.

Prevention:

Periodically check the water supply line and inlet valve screen for debris. Ensure adequate water pressure to the dishwasher (at least 20 PSI). Run a cleaning cycle with dishwasher cleaner monthly.

Expert Tip:

After resolving the F8 E1 error, run the dishwasher through a diagnostic cycle to ensure all systems are functioning correctly and clear any residual error codes. To enter service mode, press the following sequence of buttons within 6 seconds: High Temp, Heated Dry, High Temp, Heated Dry. Observe the display for test codes.

Follow-up Questions:
What is the proper resistance reading for the water inlet valve solenoid?
How do I access the flow meter on this model?
What is the minimum water pressure required for the dishwasher to operate correctly?

Frequently Asked Questions

•What is the proper resistance reading for the water inlet valve solenoid?

Typically, the resistance of the water inlet valve solenoid should be between 1k and 3k ohms. An open or shorted reading indicates a faulty solenoid.

•How do I access the flow meter on this model?

The flow meter is typically located near the water inlet valve or within the sump area of the dishwasher. Access usually involves removing the lower access panel or disassembling parts of the wash pump assembly.

•What is the minimum water pressure required for the dishwasher to operate correctly?

The minimum water pressure required for proper dishwasher operation is typically 20 PSI. Lower pressure can cause filling issues and error codes.

Whirlpool WDTA70SAKZ Dishwasher Error Code F8 E1 Troubleshooting Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the proper resistance reading for the water inlet valve solenoid?

•How do I access the flow meter on this model?

•What is the minimum water pressure required for the dishwasher to operate correctly?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: