Amana Dishwasher Beeping 3 Times & Intake Light... | appliancefaults.com

Technical Background:

The dishwasher's main control unit (MCU) monitors the water level through a flow meter or pressure sensor. If the MCU detects insufficient water intake within a specific timeframe, it triggers an error code, which is signaled by the beeping and flashing light. The MCU sends a 120V AC signal to open the water inlet valve. This voltage path is crucial for diagnosing the issue.

Symptoms:

The Amana dishwasher is beeping three times repeatedly, and the 'intake' or 'water supply' light on the control panel is flashing. The dishwasher does not seem to be filling with water.

Possible Causes:

Water supply valve is turned off or partially closed.
Inlet water filter is clogged.
Faulty water inlet valve.
Kinked or blocked water supply hose.
Low water pressure (below 20 PSI).
Defective flow meter.

Solution:

1

Start by ensuring the water supply valve under the sink is fully open and that there are no kinks in the supply line.
2

Disconnect the water supply hose from the inlet valve. Place the hose in a bucket and check the water flow. Ensure there is adequate water pressure.
3

Remove and inspect the inlet water filter screen for clogs. Clean thoroughly and reinstall.
4

Check the voltage at the water inlet valve using a multimeter during the fill cycle. Expect to see 120V AC.
5

Disconnect power at the breaker. Use a 5/16-inch nut driver to disconnect the wires to the water inlet valve. Check the valve for continuity with a multimeter. No continuity means a bad valve.
6

Inspect the water supply hose for kinks. Replace if needed.
7

If the above steps fail, the flow meter or control board may be faulty.

Safety Warning:

Disconnect power to the dishwasher at the breaker panel (LOTO - Lock Out Tag Out) before performing any repairs. High voltage is present when the dishwasher is powered on.

Prevention:

Periodically check and clean the inlet water filter to prevent clogs. Ensure adequate water pressure to the dishwasher.

Expert Tip:

Many Amana dishwashers have a service diagnostic mode. Check your tech sheet behind the kick panel. Holding down the 'High Temp' and 'Air Dry' buttons simultaneously for 3 seconds often enters the service mode. This will allow you to run diagnostic cycles to further pinpoint the issue. Some models also have a float switch - check under the filter for obstructions.

Frequently Asked Questions

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

The water inlet valve resistance typically ranges from 500 to 1500 ohms. An open circuit indicates a faulty valve.

•Where is the flow meter located, and how do I test it?

The flow meter is usually located in the water inlet path inside the dishwasher. Testing it involves using a multimeter to check for continuity while manually rotating the flow meter's impeller. A lack of consistent readings indicates a faulty flow meter.

•How do I access the tech sheet for my Amana dishwasher?

The tech sheet is usually located behind the kick panel at the bottom front of the dishwasher. It may be folded or taped to the inside of the panel or the dishwasher's frame.

Amana Dishwasher Beeping 3 Times & Intake Light Flashing: 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?

•Where is the flow meter located, and how do I test it?

•How do I access the tech sheet for my Amana dishwasher?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: