Magic Chef Freezer: not reaching freezing temperatures

Professional Repair Guide

What is this symptom?

Is your Magic Chef Freezer not reaching freezing temperatures? If your freezer is running but food remains soft or partially thawed, it may be due to common issues like a faulty thermistor, dirty condenser coils, or incorrect settings. Understanding these causes can help you troubleshoot effectively.

Urgency: Medium

Important Tips for Magic Chef Models

  • Thermistor failures and control board issues are frequently d causes in Magic Chef models.
  • Start relay and compressor issues reported as underlying causes when basic fixes fail.

Possible Causes

Faulty thermistor / temperature sensor

How to Identify: Freezer runs but incorrectly reads temperature; food not freezing despite compressor running; thermistor resistance test out of spec with multimeter.

Part: Thermistor (temperature sensor)

Dirty condenser coils reducing cooling efficiency

How to Identify: Condenser coils covered in dust/debris; compressor appears to run often; overall cooling weak.

Part: Condenser coils

Defrost system failure (heater/thermostat/timer) leading to ice buildup

How to Identify: Ice buildup on evaporator coils or back panel; freezer has heavy frost blocking vents; manual defrost temporarily fixes cooling. (

Part: Defrost heater / defrost thermostat / defrost timer

Faulty start relay or compressor issues

How to Identify: Compressor not starting or repeatedly clicking; freezer not cooling; humming or clicking noises. (

Part: Start relay / compressor

Incorrect temperature settings or airflow blockage

How to Identify: Thermostat set too warm; vents blocked by food restricting airflow. (

Part: User settings / airflow pathways

DIY Solutions

Check and adjust temperature settings and airflow

Easy 10-30 minutes
Tools Needed: none
  1. Locate temperature control and set to recommended freezing temperature. (
  2. Rearrange contents to clear vents and allow airflow; avoid overpacking. (
⚠️ Safety First: Ensure door fully closed after adjustments

Clean condenser coils

Moderate 30-60 minutes
Tools Needed: condenser coil brush, vacuum or brush
  1. Unplug freezer from power.
  2. Locate condenser coils (usually back or bottom).
  3. Use brush and vacuum to remove dust and debris.
  4. Plug freezer back in and monitor temperatures.
⚠️ Safety First: Disconnect power before cleaning

Inspect and clean door gasket

Easy 15-25 minutes
Tools Needed: mild soap and cloth
  1. Inspect door gasket for damage or gaps. 23
  2. Clean gasket surface and freezer frame with mild soap.
  3. Ensure gasket seals properly when door closed.

Next step

Choose the next step for not reaching freezing temperatures

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Check during diagnosis

Most relevant component to inspect

Temperature Sensor

Monitors the internal temperature to ensure correct operation and prevent overheating.

Typical part-only price
$15 - $35
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Possible related component

Defrost Thermostat

Monitors evaporator temperature and opens the defrost-heater circuit at a safe temperature.

$15 - $45 · Medium · 30-60 mins

Check fit & price
Possible related component

Defrost Heater

Melts frost buildup on the evaporator coils during the defrost cycle.

$25 - $60 · Medium · 30-45 mins

Check fit & price
Possible related component

Defrost Timer

Controls the cooling cycle and switches the appliance into defrost mode automatically.

$20 - $50 · Easy · 15-30 mins

Check fit & price
Model number required

Model-compatible Freezer parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Refrigerator Condenser Coil Brush

For routine cleaning of accessible condenser areas where the manufacturer permits it. It does not repair a sealed-system or compressor fault.

View maintenance supply

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Professional Repairs

Replace thermistor or defrost system components

Estimated Cost: $50 - $150

Replace evaporator fan motor

Estimated Cost: $40 - $120

Repair or replace start relay / compressor service

Estimated Cost: $100 - $400+

When to Call a Professional

Freezer has heavy frost buildup not resolved by manual defrost
Compressor does not run or start relay suspected failed
Electrical faults or component replacements beyond DIY comfort

Preventive Maintenance

  • Clean condenser coils: Poor cooling efficiency due to dirt buildup
    Frequency: every 6-12 months
  • Check door gasket condition: Warm air infiltration
    Frequency: every 6 months
  • Avoid overpacking freezer: Airflow blockage affecting freezing performance
    Frequency: ongoing

Frequently Asked Questions

Why is my Magic Chef Freezer not reaching freezing temperatures?
Common causes include a faulty thermistor, dirty condenser coils, defrost system failure, or incorrect temperature settings.
How do I fix Magic Chef Freezer not reaching freezing temperatures myself?
Start by adjusting the temperature settings, cleaning the condenser coils, and inspecting the door gasket for damage.
How much does it cost to fix not reaching freezing temperatures?
Professional repairs can range from $50 to $400+, depending on whether you need component replacements or repairs.
When should I call a technician for not reaching freezing temperatures?
If DIY solutions don't resolve the issue or if you suspect major component failures like the compressor, it's time to call a technician.

Community Analytical Insights

Guidance from available sources; statistical claims are shown only for samples of at least 10 discussions

Common Issues Reported by Users

  • Dirty condenser coils
  • Faulty thermostat
  • Damaged door seal
  • Low refrigerant levels
  • Blocked air vents

User Suggested Solutions

  1. Clean the condenser coils using a vacuum or brush to remove dust and debris. Ensure the freezer is unplugged before cleaning.

  2. Check the thermostat settings and replace it if it is malfunctioning. Use a multimeter to test for continuity.

  3. Inspect the door seal for any cracks or tears. Replace the seal if damaged to ensure proper insulation.

  4. If low refrigerant levels are suspected, contact a professional technician to check and refill the refrigerant.

  5. Ensure that air vents inside the freezer are not blocked by food items. Rearrange contents to allow for proper airflow.

Limited-source guidance; percentages and success-rate claims are not shown
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Magic chef freezer on and running but not reaching freezing ...

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