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Error code reference

Maytag Refrigerator Error Code CC

Closed circuit (short) sensed on CZT temperature thermistor during CZT test mode.

Maytag codesMaytag refrigerator codes

Closed circuit (short) sensed on CZT temperature thermistor during CZT test mode.

First step from the service manual

Check thermistor wiring and connections.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What CC means on a Maytag refrigerator

The CC error code on a Maytag refrigerator indicates that a closed circuit condition, commonly called a short, has been detected on the CZT temperature thermistor during the CZT test mode. The CZT thermistor is a temperature-sensing component responsible for monitoring conditions within a specific zone of the refrigerator. Thermistors are resistive sensors that change their electrical resistance based on temperature. When the control board reads an abnormally low resistance value from the CZT thermistor circuit, it interprets this as a short circuit rather than a valid temperature reading, triggering the CC code.

A properly functioning thermistor produces a resistance value that corresponds to the ambient temperature it is sensing. A short circuit in the thermistor wiring or within the sensor itself causes resistance to drop near zero ohms, which is outside any expected operating range. This condition prevents the refrigerator from accurately monitoring zone temperatures, which can result in improper cooling performance or compressor control issues.

The first diagnostic step is to inspect the thermistor wiring harness and all associated connectors. Technicians should look for pinched wires, chafed insulation causing two conductors to contact each other, or a connector that has been crimped or crushed. The thermistor itself can also fail internally and short. After addressing any visible wiring issues, resistance testing of the thermistor with a multimeter will confirm whether the sensor or the wiring is the root cause of the fault.

Source: manufacturer service documentation.

Common causes of CC

  1. 01

    Shorted or pinched thermistor wiring

    Wiring / connection

    The wiring harness connecting the CZT thermistor to the control board may be pinched, crushed, or have damaged insulation that allows two conductors to contact each other, creating a short circuit. Inspect the full wire run for any points of damage or contact with sharp metal edges.

  2. 02

    Failed CZT thermistor

    Part replacement

    The thermistor sensor itself can fail internally, causing its resistance to drop near zero ohms instead of reflecting actual temperature. Testing the thermistor with a multimeter will confirm whether it has internally shorted and needs replacement.

  3. 03

    Corroded or damaged connector

    Wiring / connection

    The connector joining the thermistor wiring to the main harness can accumulate corrosion or suffer physical damage that bridges the contacts inside the connector housing. Inspecting and cleaning or replacing the connector can resolve the fault.

  4. 04

    Moisture intrusion in wiring or connector

    Wiring / connection

    Water or condensation that has entered the thermistor connector or wiring can create a conductive path between the signal wires, simulating a short circuit. Drying the affected area and sealing any entry points is the corrective action.

  5. 05

    Faulty control board

    Part replacement

    If the thermistor and all associated wiring test within acceptable parameters, the control board circuit responsible for reading the CZT thermistor signal may itself be at fault. A control board replacement would be required in this scenario.

See the test procedure for each cause

Frequently asked questions about CC

What does CC mean on a Maytag refrigerator?
The CC error code means the refrigerator's control system has detected a closed circuit condition, or short, on the CZT temperature thermistor during a CZT test mode. The thermistor is a sensor that monitors temperature in a specific cooling zone. A short causes the resistance reading to drop abnormally low, preventing an accurate temperature measurement and triggering this code.
Can I fix the CC error code myself?
Some causes of the CC code are DIY-friendly, particularly inspecting and reseating thermistor wiring connectors or drying out a moisture-affected connector. If the thermistor itself has failed internally, replacing it is a moderately accessible repair for someone comfortable with basic appliance disassembly. However, if the control board is at fault, that repair is more complex and may warrant a professional technician.
Is it safe to use my Maytag refrigerator while the CC code is showing?
The CC code indicates the refrigerator cannot reliably read temperatures in the affected CZT zone, which means cooling in that area may not be properly controlled. Running the appliance in this condition risks food spoilage if temperatures are not being maintained correctly. It is advisable to address the fault promptly and verify temperatures with an independent thermometer in the meantime.
Will resetting the refrigerator clear the CC error code?
A reset may temporarily clear the code from the display, but it will return if the underlying short circuit in the CZT thermistor circuit has not been resolved. The control board runs the CZT test mode and will detect the fault again each time. A permanent fix requires diagnosing and correcting the wiring issue or replacing the failed thermistor.
How much does it cost to repair a Maytag refrigerator showing a CC code?
Repair costs vary depending on the root cause. If the issue is simply a loose or corroded connector, the fix may cost little to nothing beyond your time. A replacement CZT thermistor typically runs in the range of $20 to $60 for the part. If a control board replacement is needed, parts alone can range from $100 to $300 or more, with additional labor costs if a technician is hired.

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