Amana Refrigerator Dual Ice Maker Not Working After... | appliancefaults.com

Technical Background:

The refrigerator's Main Control Unit (MCU) controls the ice maker operation based on input from temperature sensors and timers. A power surge can corrupt the MCU's programming or damage components in the ice maker circuit. The ice maker relies on 120V AC power to operate the water valve and the ice ejection mechanism.

Symptoms:

The Amana refrigerator's dual ice maker is not producing ice after a recent power outage. Both ice makers (if applicable) are inoperative.

Possible Causes:

Corrupted MCU logic due to power surge
Ice maker water valve failure
Ice maker mold thermostat failure
Ice maker mechanical jamming
Tripped breaker
Loose wiring connection at the ice maker or control board

Solution:

1

Check the breaker panel for a tripped breaker. Reset the refrigerator breaker if necessary.
2

Verify 120V AC power at the refrigerator outlet using a multimeter.
3

Inspect the wiring harness connecting the ice maker to the main control board. Look for loose connections or damaged wires.
4

Force cycle the ice maker using the service mode (see Expert Tip). Observe if the ice maker attempts to fill with water.
5

If the ice maker doesn't fill, test the ice maker water valve with a multimeter. Check for continuity; no continuity indicates a faulty valve. Replace if needed.
6

Check the ice maker mold thermostat for proper function. Use a multimeter to check for continuity at room temperature. No continuity suggests a faulty thermostat and requires replacement.
7

If the ice maker fills but doesn't eject ice, suspect a mechanical problem or faulty heater. Inspect for ice jams or obstructions.

Safety Warning:

Disconnect power to the refrigerator at the breaker panel before performing any repairs. Use proper Lock-Out/Tag-Out (LOTO) procedures to ensure the circuit remains de-energized. High voltage is present in the refrigerator's electrical system.

Prevention:

Install a surge protector on the refrigerator's power cord to protect the MCU from power surges. Periodically clean the ice maker and ice storage bin to prevent ice jams.

Expert Tip:

Many Amana refrigerators have a service mode that allows you to force cycle the ice maker. This is often accessed by pressing and holding a combination of buttons on the control panel. Refer to the refrigerator's service manual or search online for the specific sequence for your model. For example, holding the 'Freezer Temp' and 'Ice Maker' buttons simultaneously for 5 seconds may initiate the diagnostic mode.

Frequently Asked Questions

•Where is the ice maker water valve located?

The ice maker water valve is typically located at the back of the refrigerator, near the bottom, where the water supply line connects.

•How do I know if the MCU is damaged and needs replacement?

MCU damage is often difficult to diagnose definitively without specialized equipment. Signs of MCU failure can include erratic operation, failure to respond to control panel inputs, and error codes. Consult a qualified appliance technician for MCU diagnostics.

•What is the correct resistance reading for the ice maker water valve?

The typical resistance reading for an ice maker water valve is between 200 and 500 ohms. However, this can vary depending on the specific valve. Consult the manufacturer's specifications for the exact value.

Amana Refrigerator Dual Ice Maker Not Working After Power Outage: Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where is the ice maker water valve located?

•How do I know if the MCU is damaged and needs replacement?

•What is the correct resistance reading for the ice maker water valve?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: