The Role of Thermostats in Appliance Function—And Failure

The Role of Thermostats in Appliance Function—And Failure

PRS Parts Inc.

Thermostats are the unsung heroes of many home appliances. Whether you’re drying clothes, keeping your food cold, or heating water, these small yet critical components are responsible for maintaining the right temperature for optimal performance. At PRS Parts Inc., we know how important a functioning thermostat is—and how a failing one can lead to bigger problems if not addressed early.


🛠 What Does a Thermostat Do in an Appliance?

A thermostat is a temperature-sensitive switch that turns on or off based on the temperature inside the appliance. Here’s how they work in common appliances:

  • Refrigerators & Freezers: Thermostats control the cooling cycle. If the internal temperature rises above the set level, the thermostat activates the compressor to bring it back down.

  • Dryers: They monitor the air temperature in the drum and shut off the heat when it gets too hot, preventing overheating and fire hazards.

  • Ovens: Thermostats ensure the oven heats to the temperature you set and maintains it during cooking.

  • Water Heaters & Dishwashers: They help heat water to safe and effective cleaning or washing temperatures.


⚠️ Signs of a Failing Thermostat

If your appliance isn’t performing correctly, the thermostat could be the issue. Watch out for:

  • Refrigerators not cooling properly

  • Dryers overheating or running cold

  • Ovens not reaching or maintaining temperature

  • Dishwashers using cold water during the wash cycle

Thermostats can wear out over time or become inaccurate due to age, electrical issues, or moisture damage.


🔧 Fix or Replace?

Some thermostats can be recalibrated, but in most cases, replacement is the most reliable solution. The good news? Thermostat parts are generally affordable and easy to swap out with basic tools. If you’re unsure which thermostat your appliance needs, bring the model number to PRS Parts Inc. and our team will help you find the exact OEM (Original Equipment Manufacturer) part.


🧊 Don’t Ignore the Small Parts

Because thermostats are small and often hidden, they’re easy to overlook. But ignoring them can lead to spoiled food, uneven cooking, or unsafe appliance operation. Replacing a $20 thermostat now could save you hundreds in repair or replacement costs later.


Visit PRS Parts Inc. at 540 Lagoon Dr. for authentic appliance replacement parts and expert repair assistance. Whether you're a homeowner or a repair pro, we’ve got the parts and the know-how to keep your appliances running right.

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