Maytag Dual Cool Refrigerator: Fridge Warm, Freezer at 0... | appliancefaults.com

Technical Background:

The Maytag Dual Cool system utilizes separate evaporators for the freezer and refrigerator compartments. The MCU (Main Control Unit) controls the evaporator fan motors, damper door, and defrost system to regulate temperature in each compartment. Voltage to these components is typically 12V DC from the control board. The damper door controls airflow between the freezer and refrigerator compartments.

Symptoms:

The homeowner observes that the refrigerator compartment is warm, while the freezer compartment maintains a temperature of 0 degrees Fahrenheit. Food in the refrigerator is not being properly cooled.

Possible Causes:

Evaporator fan motor failure in the refrigerator compartment.
Damper door malfunction restricting cold air flow to the fridge.
Defrost system failure leading to ice buildup on the refrigerator evaporator coil.
Sealed system restriction affecting refrigerant flow to the refrigerator evaporator.

Solution:

1

Unplug the refrigerator and locate the refrigerator evaporator fan motor. Check for 12V DC at the fan motor connector with a multimeter.
2

If voltage is present, the fan motor is likely faulty and needs replacement. Order a replacement motor.
3

If no voltage is present, inspect the wiring harness and the refrigerator control board for any visible damage or loose connections.
4

Access the damper door, typically located in the upper part of the refrigerator compartment. Manually check if the damper door opens and closes freely. If stuck, replace the damper assembly.
5

Check the refrigerator evaporator coil for excessive ice buildup. If iced up, initiate a manual defrost cycle by forcing the defrost relay on the control board or by using a service diagnostic mode.
6

If the defrost system appears faulty, test the defrost heater and defrost thermostat with a multimeter for continuity. Replace any faulty components.
7

If all electrical components appear functional but the fridge is still warm, a sealed system issue (refrigerant leak or compressor failure) is probable. Contact a certified refrigeration technician.

Safety Warning:

Disconnect power to the refrigerator at the breaker panel before performing any repairs. Capacitors in the control board can hold a charge even after the refrigerator is unplugged. Use caution when working near electrical components. Lock Out / Tag Out (LOTO) procedures should be followed.

Prevention:

Clean the condenser coils located at the back or bottom of the refrigerator every 6 months. Ensure proper air circulation around the refrigerator. Avoid overpacking the refrigerator to maintain proper airflow.

Expert Tip:

Many Maytag refrigerators have a service diagnostic mode. To enter it, typically press and hold the freezer temperature DOWN and refrigerator temperature UP buttons simultaneously for 3-5 seconds. This will allow you to run diagnostic tests on individual components.

Frequently Asked Questions

•Where is the refrigerator evaporator fan motor located?

The refrigerator evaporator fan motor is typically located behind an access panel inside the refrigerator compartment, usually at the back wall.

•How do I test the defrost heater for continuity?

Unplug the refrigerator and locate the defrost heater. Disconnect the wires connected to the heater. Set your multimeter to the ohms setting. Place the probes of the multimeter on the heater terminals. A reading of 20-50 ohms typically indicates continuity. An open circuit indicates a faulty heater.

•What is the typical voltage reading I should see at the outlet powering the refrigerator?

You should measure approximately 120V AC at the outlet. If the voltage is significantly lower or higher, there may be an electrical issue with the outlet or the home's electrical system.

Maytag Dual Cool Refrigerator: Fridge Warm, Freezer at 0 - Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where is the refrigerator evaporator fan motor located?

•How do I test the defrost heater for continuity?

•What is the typical voltage reading I should see at the outlet powering the refrigerator?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: