Refrigerator Thermostat Failure Issues – Troubleshoot or Call Professionals

Possible refrigerator thermostat problems - Refrigeration tips, news and  updates | Refrigeration ClubRefrigerator thermostats are responsible for regulating the temperature inside your fridge and preserving perishable food. When this vital component fails, it can compromise food freshness. You need to be aware of common refrigerator thermostat issues because this knowledge will help you determine when to call the professionals.

Refrigerator thermostat failure issues

1. Failure to Start: 

refrigerator thermostat not working can be due to a complete breakdown in the temperature control mechanism. It will prevent the appliance from starting as anticipated. In such situations, you need to act promptly to avoid spoilage of stored food.

2. Inaccurate Temperature Settings: 

If your refrigerator feels too warm or too cold, even after you adjust the thermostat settings –

  • This leads to stored food decomposition 
  • Causes an increase in energy consumption

3. Constantly Running Compressor: 

A thermostat failure may cause the compressor to run continuously. This leads to –

  • Excessive wear and tear on the appliance 
  • Increases energy costs 
  • Damages refrigerator lifespan. 

4. Inconsistent Cooling: 

A malfunctioning thermostat may cause the refrigerator to cool erratically, resulting in –

  • Uneven temperatures across the fridge
  • Some areas may be too cold, while others remain too warm
  • Affects the overall efficiency of the refrigerator

5. Frost Buildup in Freezer: 

If you observe excessive frost buildup in the freezer, it may be a consequence of a faulty thermostat. A malfunction can upset the defrost cycle, which –

  • Causes an accumulation of frost 
  • Affects the performance of your fridge 

Do You Need to Call Professionals?

While some minor thermostat issues may be resolved through DIY troubleshooting, certain situations warrant professional intervention:

  1. If basic troubleshooting steps, such as coil cleaning or adjustment to the thermostat settings, do not correct the issue, it is time to call technicians. 
  2. If the thermostat problem is connected to electrical components or wiring, it is advisable to call in professionals. 
  3. When thermostat malfunctions indicate compressor issues or low refrigerant levels, professional diagnosis and repair are necessary. These components are complex and need specialized knowledge and tools for accurate assessment and repair.


A non-working refrigerator thermostat triggers appliance performance and lifespan. While some minor dilemmas can be resolved through DIY troubleshooting, but persistent or complex problems will need professional expertise. 

Prioritize appliance maintenance and stored food safety by seeking professional help whenever needed.

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