Admiral Refrigerator Error Code E1: Sensor Failure... | appliancefaults.com

Technical Background:

The E1 error code indicates a fault in the refrigerator's temperature sensor circuit. The main control unit (MCU) monitors the voltage signal from the sensor to regulate cooling. The sensor is typically a thermistor, which changes resistance with temperature. An open or shorted sensor, or a break in the wiring, will cause the MCU to detect an abnormal voltage and display the E1 error.

Symptoms:

The homeowner might observe that the refrigerator is not cooling properly, or the temperature is fluctuating wildly. Food may spoil quickly. The E1 error code will be displayed on the control panel.

Possible Causes:

Defective refrigerator temperature sensor
Wiring harness issue (open or shorted circuit)
Loose connection at the sensor or control board
Faulty main control board (MCU)
Ice buildup around the sensor affecting readings

Solution:

1

Unplug the refrigerator from the outlet or turn off the breaker at the breaker panel.
2

Locate the refrigerator temperature sensor. This is usually behind a panel in the refrigerator compartment. Access using a 1/4-inch nut driver.
3

Inspect the wiring harness and connector for any signs of damage or corrosion. Use a multimeter to check for continuity.
4

Use a multimeter to measure the resistance of the sensor. Compare the reading to the tech sheet specifications for the refrigerator. Resistance values should be within range specified at given temperatures.
5

If the sensor resistance is out of range, replace the sensor with a new OEM part. Use appropriate wire connectors for secure connections.
6

If the wiring and sensor test good, suspect a faulty main control board. Replacement of the control board may be necessary. Document existing settings prior to replacement.
7

Plug the refrigerator back in or turn the breaker back on and verify the E1 error is gone. Monitor operation for 24 hours to ensure proper cooling.

Safety Warning:

Always disconnect power to the refrigerator before performing any repairs. Lock Out/Tag Out (LOTO) procedures should be followed. Some components may retain a high voltage charge even after the unit is unplugged.

Prevention:

Periodically check the refrigerator's temperature to ensure it's within the recommended range (35-40°F). Clean the condenser coils every 6 months to improve cooling efficiency. Inspect the door seals to ensure a tight seal.

Expert Tip:

Many Admiral refrigerators have a service mode. Check the technical service manual for the specific model to access diagnostic tests and calibration procedures. This can sometimes clear the E1 error if it's a false alarm.

Frequently Asked Questions

•Where can I find the tech sheet for my Admiral refrigerator?

The tech sheet is usually located behind the kick panel at the bottom of the refrigerator, or taped to the back of the unit. You can also search online using the model number.

•What is the typical resistance range for a refrigerator temperature sensor at room temperature (70°F)?

The resistance will vary depending on the sensor type, but it's often in the range of 5,000 to 10,000 ohms at 70°F. Consult the tech sheet for your specific model.

•How do I access the main control board in my Admiral refrigerator?

The main control board is typically located behind a panel at the top or back of the refrigerator. You will need to remove the panel using a screwdriver or nut driver.

Admiral Refrigerator Error Code E1: Sensor Failure Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where can I find the tech sheet for my Admiral refrigerator?

•What is the typical resistance range for a refrigerator temperature sensor at room temperature (70°F)?

•How do I access the main control board in my Admiral refrigerator?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: