Amana Refrigerator Error Code E0: Icemaker Sensor Fault... | appliancefaults.com

Technical Background:

The main control unit (MCU) monitors the icemaker thermistor voltage to determine the ice level and trigger ice production. An open or shorted thermistor, or a break in the wiring, disrupts this voltage signal, resulting in the E0 error. The MCU interprets an invalid signal as a sensor failure.

Symptoms:

The Amana refrigerator displays error code E0. The icemaker may not be producing ice, or production is intermittent. There may be frost buildup in the icemaker area. The customer may have already tried power cycling the unit with no success.

Possible Causes:

Faulty Icemaker Thermistor
Wiring Harness Issue to Icemaker
Defective Icemaker Control Module
Main Control Board Malfunction
Icemaker Assembly Failure

Solution:

1

Disconnect power to the refrigerator at the breaker panel.
2

Locate the icemaker. It's usually in the freezer compartment's upper left.
3

Remove the icemaker cover. Typically, this requires a 1/4-inch nut driver.
4

Disconnect the wiring harness connected to the icemaker. Use a multimeter to check the thermistor resistance. A typical reading should be around 5k ohms at room temperature (70 degrees Fahrenheit). Consult the service manual for the exact specification.
5

If the thermistor is out of range, replace the icemaker assembly or the thermistor itself if it's a separate component. After replacement, reassemble the icemaker.
6

If the thermistor reads correctly, check the wiring harness for continuity and shorts using your multimeter. Repair any damaged wires.
7

If the wiring is good, suspect the main control board. Replacement is recommended only after confirming all other components are functional. Confirm power (120V AC) is reaching the icemaker from the main control board.

Safety Warning:

Always disconnect power to the refrigerator before performing any repairs. Use Lock-Out/Tag-Out (LOTO) procedures to prevent accidental re-energizing of the circuit. Be aware of high voltage components inside the refrigerator control panel.

Prevention:

Regularly check the freezer temperature to ensure it is within the recommended range (0-5 degrees Fahrenheit). Clean the icemaker periodically to prevent ice buildup that can strain the system. Replace the water filter as recommended by the manufacturer to prevent mineral buildup in the icemaker.

Expert Tip:

Some Amana refrigerators have a service mode that allows you to manually test the icemaker. Consult the service manual for the specific sequence. Often, pressing and holding the freezer temperature down button and the light switch simultaneously for 10 seconds will initiate a diagnostic cycle. The icemaker will cycle, and you can observe its operation.

Frequently Asked Questions

•How do I access the main control board?

The main control board is usually located behind an access panel on the back of the refrigerator. You'll need to disconnect power and remove the panel using a screwdriver, typically a Phillips head.

•What is the correct resistance range for the icemaker thermistor at different temperatures?

Refer to the Amana service manual for the specific resistance chart. Generally, the resistance will decrease as the temperature increases. A common range is 5k ohms at 70 degrees Fahrenheit and around 10k ohms at 32 degrees Fahrenheit.

•Where can I find a replacement icemaker assembly for my Amana refrigerator model?

You can find replacement parts at most online appliance parts retailers, or from your local appliance parts supplier. Be sure to have your model number handy to ensure you get the correct part.

Amana Refrigerator Error Code E0: Icemaker Sensor Fault Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the main control board?

•What is the correct resistance range for the icemaker thermistor at different temperatures?

•Where can I find a replacement icemaker assembly for my Amana refrigerator model?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: