Amana Dishwasher Error Code 6-2: Water Flow Meter Fault... | appliancefaults.com

Technical Background:

The dishwasher's Main Control Unit (MCU) monitors the water flow meter signal. The flow meter generates pulses as water passes through it. The MCU interprets these pulses to determine the water fill level. Error 6-2 indicates the MCU isn't receiving the expected signal or is receiving an erratic signal from the flow meter. This could be due to a faulty flow meter, wiring problems, or a control board issue. Voltage paths typically involve 5V DC from the MCU to the flow meter and a return signal to the MCU.

Symptoms:

The dishwasher displays error code 6-2. The dishwasher may not fill with water, or it may fill very slowly. The wash cycle may be interrupted.

Possible Causes:

Defective water flow meter
Wiring harness issue (loose connection, damaged wires)
Clogged water inlet valve or filter
Obstruction in the water supply line
Faulty dishwasher control board (MCU)

Solution:

1

Disconnect power to the dishwasher at the breaker panel. Verify 0V AC at the dishwasher power cord using a multimeter.
2

Locate the water flow meter. It's typically near the water inlet valve.
3

Inspect the wiring harness connected to the water flow meter for any loose connections or damaged wires. Repair or replace as needed.
4

Check the water inlet valve and its filter for clogs. Clean or replace if necessary.
5

Use a multimeter to test the water flow meter for continuity and proper resistance, according to the manufacturer's specifications. Replace the flow meter if it's faulty.
6

Check the water pressure to the dishwasher. It should be between 20-120 PSI.
7

If the wiring and flow meter are good, the issue could be the control board. Replace the control board as a last resort.

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 re-energization of the circuit. High voltage is present inside the dishwasher; exercise caution.

Prevention:

Periodically clean the water inlet valve filter. Ensure the water supply line is free from kinks. Use a water softener if you have hard water.

Expert Tip:

Some Amana dishwashers have a service mode. To enter it, press and hold the 'High Temp Wash' and 'Heated Dry' buttons simultaneously for 3 seconds. This may allow you to run diagnostic tests or clear error codes.

Frequently Asked Questions

•What is the typical resistance range of a functional Amana dishwasher water flow meter?

The resistance range varies by model, but typically falls between 2k to 5k ohms. Consult the specific service manual for your model for accurate values.

•How do I access the water flow meter on my Amana dishwasher?

Usually, you'll need to remove the lower access panel and sometimes the kick plate at the front of the dishwasher. The flow meter is generally located near the water inlet valve.

•If the water pressure is low, what steps should I take?

First, check the main water supply valve to ensure it's fully open. Then, inspect the water supply line for kinks or obstructions. If the issue persists, consider calling a plumber to evaluate your home's water pressure.

Amana Dishwasher Error Code 6-2: Water Flow Meter Fault Repair Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the typical resistance range of a functional Amana dishwasher water flow meter?

•How do I access the water flow meter on my Amana dishwasher?

•If the water pressure is low, what steps should I take?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: