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How to Troubleshoot A Mini Fridge Not Cooling?

Published on
6 min read
How to Troubleshoot A Mini Fridge Not Cooling? image

Best Mini Fridges Troubleshooting Steps to Buy in October 2025

1 Antarctic Star Compact Mini Fridge, 10L Portable Small Refrigerator, 2.6 Gal Mini Fridge with AC/DC Adapters, Small Cosmetics Cooler for Beverage, Food, Makeup, Bedroom, Office, Dorm, Black

Antarctic Star Compact Mini Fridge, 10L Portable Small Refrigerator, 2.6 Gal Mini Fridge with AC/DC Adapters, Small Cosmetics Cooler for Beverage, Food, Makeup, Bedroom, Office, Dorm, Black

  • PORTABLE 10L MINI FRIDGE: COMPACT DESIGN WITH A HANDLE FOR EASY TRAVEL.

  • AC/DC POWER OPTIONS: USE AT HOME OR ON THE GO WITH CAR CONNECTIVITY.

  • EFFICIENT COOLING & QUIET: COOLS QUICKLY AND OPERATES AT JUST 38 DB.

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$69.99
Antarctic Star Compact Mini Fridge, 10L Portable Small Refrigerator, 2.6 Gal Mini Fridge with AC/DC Adapters, Small Cosmetics Cooler for Beverage, Food, Makeup, Bedroom, Office, Dorm, Black
2 Antarctic Star Compact Refrigerator, Portable Mini Fridge, Skin Care 4L Capacity/6 Cans, for Bedroom, Car, Office & Dorm, Small Cooler for Cosmetics, Beverage and Food, Black

Antarctic Star Compact Refrigerator, Portable Mini Fridge, Skin Care 4L Capacity/6 Cans, for Bedroom, Car, Office & Dorm, Small Cooler for Cosmetics, Beverage and Food, Black

  • VERSATILE STORAGE FOR FOOD, DRINKS, AND SKINCARE-PERFECT FOR ALL SETTINGS!
  • ENERGY-EFFICIENT, QUIET OPERATION FOR A PEACEFUL, ECO-FRIENDLY SPACE.
  • DUAL AC/DC POWER OPTIONS FOR ULTIMATE CONVENIENCE ON THE GO!
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$36.99
Antarctic Star Compact Refrigerator, Portable Mini Fridge, Skin Care 4L Capacity/6 Cans, for Bedroom, Car, Office & Dorm, Small Cooler for Cosmetics, Beverage and Food, Black
3 Upstreman 3.2 Cu.Ft Mini Fridge with Freezer, Single Door Mini Fridge, Dorm Fridge, Adjustable Thermostat, Mini Refrigerator for Bedroom, Office, Dorm, Black-BR321

Upstreman 3.2 Cu.Ft Mini Fridge with Freezer, Single Door Mini Fridge, Dorm Fridge, Adjustable Thermostat, Mini Refrigerator for Bedroom, Office, Dorm, Black-BR321

  • SPACE-EFFICIENT SINGLE-DOOR DESIGN MAXIMIZES STORAGE IN SMALL AREAS.
  • ADJUSTABLE THERMOSTAT WITH 5 SETTINGS KEEPS FOOD FRESH AND SAVES ENERGY.
  • QUIET OPERATION AT 38 DB ENSURES IT WON'T DISTURB YOUR PEACEFUL SPACE.
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$159.99
Upstreman 3.2 Cu.Ft Mini Fridge with Freezer, Single Door Mini Fridge, Dorm Fridge, Adjustable Thermostat, Mini Refrigerator for Bedroom, Office, Dorm, Black-BR321
4 Antarctic Star Compact Refrigerator, Portable Mini Fridge, Skin Care 4L Capacity/6 Cans, for Bedroom, Car, Office & Dorm, Small Cooler for Cosmetics, Beverage and Food, White

Antarctic Star Compact Refrigerator, Portable Mini Fridge, Skin Care 4L Capacity/6 Cans, for Bedroom, Car, Office & Dorm, Small Cooler for Cosmetics, Beverage and Food, White

  • COMPACT DESIGN FITS ANY SPACE: IDEAL FOR HOME, OFFICE, AND TRAVEL!
  • VERSATILE 4L CAPACITY STORES DRINKS, FOOD, OR SKINCARE WITH EASE.
  • AC/DC OPTIONS & QUIET OPERATION: ENJOY COOL COMFORT ANYWHERE!
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$35.99
Antarctic Star Compact Refrigerator, Portable Mini Fridge, Skin Care 4L Capacity/6 Cans, for Bedroom, Car, Office & Dorm, Small Cooler for Cosmetics, Beverage and Food, White
5 EUHOMY 3.2 Cu.Ft Mini Fridge with Freezer, Single Door Compact Refrigerator, Adjustable Thermostat, Mini Refrigerator Energy Saving, Mini fridge for Bedroom, Dorm, Office, Black

EUHOMY 3.2 Cu.Ft Mini Fridge with Freezer, Single Door Compact Refrigerator, Adjustable Thermostat, Mini Refrigerator Energy Saving, Mini fridge for Bedroom, Dorm, Office, Black

  • SAVE ENERGY WITH 0.66 KWH/DAY-ECO-FRIENDLY AND COST-EFFICIENT!
  • SPACIOUS 3.2 CU.FT WITH MICRO-FREEZER FOR VERSATILE FOOD STORAGE.
  • QUIET OPERATION AT 38DB-PERFECT FOR BEDROOMS AND OFFICES.
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$156.99
EUHOMY 3.2 Cu.Ft Mini Fridge with Freezer, Single Door Compact Refrigerator, Adjustable Thermostat, Mini Refrigerator Energy Saving, Mini fridge for Bedroom, Dorm, Office, Black
6 Cooluli Mini Fridge for Bedroom - Car, Office Desk & Dorm Room - Portable 4L/6 Can Electric Plug In Cooler & Warmer for Food, Drinks, Skincare Beauty & Makeup - 12v AC/DC & Exclusive USB Option, Black

Cooluli Mini Fridge for Bedroom - Car, Office Desk & Dorm Room - Portable 4L/6 Can Electric Plug In Cooler & Warmer for Food, Drinks, Skincare Beauty & Makeup - 12v AC/DC & Exclusive USB Option, Black

  • PORTABLE 4L CAPACITY MINI FRIDGE: ENJOY FRESH FOOD ANYWHERE!
  • VERSATILE USE: PERFECT FOR SNACKS, DRINKS, AND SKINCARE ESSENTIALS.
  • ENERGY-EFFICIENT & QUIET: ADVANCED TECH FOR ECO-FRIENDLY COOLING.
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$49.99
Cooluli Mini Fridge for Bedroom - Car, Office Desk & Dorm Room - Portable 4L/6 Can Electric Plug In Cooler & Warmer for Food, Drinks, Skincare Beauty & Makeup - 12v AC/DC & Exclusive USB Option, Black
7 EUHOMY Mini Fridge, 4 Liter/6 Can Compact Refrigerator, AC/DC Portable Cooler & Warmer for SkinCare, Food and Drinks, Mini Fridge for Bedroom, Office, Car & Dorm, Black

EUHOMY Mini Fridge, 4 Liter/6 Can Compact Refrigerator, AC/DC Portable Cooler & Warmer for SkinCare, Food and Drinks, Mini Fridge for Bedroom, Office, Car & Dorm, Black

  • VERSATILE STORAGE: PERFECT FOR FOOD, DRINKS, BREAST MILK & COSMETICS.

  • COMPACT DESIGN: 4L CAPACITY FITS 6 CANS; IDEAL FOR ANY SPACE.

  • ECO-FRIENDLY & QUIET: LOW ENERGY USE AND OPERATES AT JUST 25 DB.

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$32.99 $39.99
Save 18%
EUHOMY Mini Fridge, 4 Liter/6 Can Compact Refrigerator, AC/DC Portable Cooler & Warmer for SkinCare, Food and Drinks, Mini Fridge for Bedroom, Office, Car & Dorm, Black
8 BEICHEN Mini Fridge [Upgrade], Small Fridge Rapid Cooling 4 Liter/6 Cans Skincare Fridge, Cooler and Warmer Refrigerators for Bedroom, Cosmetics, Office and Car (Black)

BEICHEN Mini Fridge [Upgrade], Small Fridge Rapid Cooling 4 Liter/6 Cans Skincare Fridge, Cooler and Warmer Refrigerators for Bedroom, Cosmetics, Office and Car (Black)

  • COMPACT & PORTABLE: IDEAL FOR ANY SPACE, FROM DORMS TO ROAD TRIPS!
  • DUAL COOLING & HEATING: CHILL OR WARM ITEMS, PERFECT FOR ALL NEEDS.
  • ECO-FRIENDLY & QUIET: LOW ENERGY USE AND WHISPER-QUIET OPERATION.
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$47.49 $52.99
Save 10%
BEICHEN Mini Fridge [Upgrade], Small Fridge Rapid Cooling 4 Liter/6 Cans Skincare Fridge, Cooler and Warmer Refrigerators for Bedroom, Cosmetics, Office and Car (Black)
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If your mini fridge is not cooling, there are a few common troubleshooting steps you can take to try and fix the problem. First, make sure the fridge is plugged in and receiving power. Check the outlet and power cord to ensure they are working properly. Next, check the temperature settings on the fridge to make sure they are set correctly. If the settings are correct, try cleaning the coils on the back of the fridge, as dust and debris can cause the fridge to not cool properly. If these steps do not resolve the issue, it is possible that there is a problem with the thermostat, compressor, or coolant levels, in which case it may be necessary to call a professional for repair.

How to troubleshoot a faulty overload relay in a mini fridge?

  1. Check the power supply: Make sure the mini fridge is properly plugged in and receiving power. Check the outlet by plugging in another appliance to confirm there is power.
  2. Inspect the overload relay: Locate the overload relay on the compressor of the mini fridge. Check for any visible signs of damage, such as burnt or melted components.
  3. Test the overload relay: Use a multimeter to test the overload relay for continuity. Disconnect the relay from the compressor and test the connections for continuity. If there is no continuity, the relay is faulty and needs to be replaced.
  4. Replace the overload relay: If the overload relay is found to be faulty, purchase a new one that is compatible with your mini fridge's make and model. Install the new relay by connecting the wires according to the manufacturer's instructions.
  5. Test the mini fridge: Plug in the mini fridge and turn it on to test if the new overload relay has resolved the issue. Monitor the fridge for any abnormal noises or signs of malfunction.
  6. Seek professional help: If the issue persists after replacing the overload relay, it may indicate a different problem with the mini fridge's compressor or other components. In this case, it is recommended to consult a professional appliance repair technician for further troubleshooting and repair.

What is the function of the evaporator fan in a mini fridge?

The function of the evaporator fan in a mini fridge is to circulate air over the evaporator coils. This helps to cool down the air and maintain a consistent temperature inside the fridge. The evaporator fan also helps to prevent frost buildup on the coils by circulating air and promoting proper airflow.

How to identify if the capillary tube in a mini fridge is clogged?

  1. Check for ice buildup: One common indicator of a clogged capillary tube is the presence of ice buildup in or around the tube. If you notice ice formation, it may be blocking the flow of refrigerant through the tube.
  2. Inspect the temperature: If the mini fridge is not cooling properly or maintaining a consistent temperature, it could be a sign of a clogged capillary tube. A blockage in the tube can prevent the refrigerant from flowing properly and cooling the interior of the fridge.
  3. Listen for unusual noises: A clogged capillary tube can cause the compressor to work harder than normal, leading to unusual noises such as buzzing, rattling, or knocking sounds. If you hear any of these noises coming from your mini fridge, it may indicate a blockage in the capillary tube.
  4. Check for leaks: Inspect the capillary tube for any signs of leaks or damage. If there are any visible cracks or holes in the tube, it may be causing a blockage and preventing the refrigerant from flowing properly.
  5. Consult a professional: If you suspect that the capillary tube in your mini fridge is clogged, it is recommended to consult a professional technician for further diagnosis and repair. They will have the necessary tools and expertise to properly assess the issue and provide the appropriate solution.

What is the role of the gasket on the door of a mini fridge?

The gasket on the door of a mini fridge serves as a tight seal to prevent warm air from entering the fridge and cold air from escaping. It helps to maintain the temperature inside the fridge, ensuring that the food and beverages stored inside stay fresh and cold. The gasket also helps to reduce energy consumption by preventing the fridge from working harder to maintain its temperature. Additionally, the gasket helps to keep out moisture and humidity, which can lead to the growth of mold and mildew inside the fridge. Overall, the gasket plays a crucial role in the efficient operation of a mini fridge.

How to check if the compressor in a mini fridge is working?

There are a few ways to check if the compressor in a mini fridge is working:

  1. Listen for noises: When the compressor is working properly, you should be able to hear a humming sound coming from the back of the fridge. If you do not hear any noise, the compressor may not be working.
  2. Feel the back of the fridge: Place your hand on the back of the fridge where the compressor is located. If the back of the fridge is warm to the touch, it indicates that the compressor is working and producing heat during the cooling process.
  3. Check the temperature: Place a thermometer inside the fridge and monitor the temperature over a period of time. If the temperature is not dropping as it should, the compressor may not be working properly.
  4. Check for frost buildup: If there is frost buildup on the coils at the back of the fridge, it may indicate that the compressor is working but the airflow is blocked. If there is no frost buildup at all, it may indicate that the compressor is not functioning.

If you suspect that the compressor in your mini fridge is not working, it is best to contact a professional technician to diagnose and repair the issue.

What is the role of the start capacitor in a mini fridge?

The start capacitor in a mini fridge is used to provide an extra surge of power to the compressor motor when the fridge is started up. This extra power helps to overcome the initial resistance and get the motor running smoothly. Once the motor is up to speed, the start capacitor disengages and the motor continues to run on its own power. The start capacitor is essential for the proper functioning of the compressor motor in a mini fridge.