(Round) Defrost Temperature Control, DTC-003
The image shows an DTC-003 (Round) Defrost Temperature Control, a critical bimetal safety device used in refrigerators and freezers to regulate the defrost cycle.
Core Function & Working Principle
This component acts as a temperature-sensitive switch that protects the evaporator from overheating during a defrost cycle:
- Activation: When the evaporator coils get cold enough for frost to build, the thermostat remains closed, allowing the defrost heater to receive power.
- Deactivation: Once the frost has melted and the coils reach a specific temperature (typically around
the bimetal disc inside expands and opens the circuit, shutting off the heater.
Technical Specifications
- Model Number: DTC-003 (Round Type).
- Type: Bimetal Thermostat (thermal cutout).
- Wiring: Features a 2-wire lead (red and white) for integration into the refrigerator’s wiring harness.
- Mounting: Includes a metal clip designed to snap directly onto the evaporator tubes for accurate temperature sensing.
Compatibility & Replacement
This part is a common universal replacement for major appliance brands:
- Compatible Brands: Whirlpool, Kenmore, Frigidaire, KitchenAid, Maytag, Amana, and Electrolux.
- Fixes Common Symptoms:
- Freezer section is too warm.
- Excessive frost or ice buildup on evaporator coils.
- Fridge runs too long or never shuts off.
Description
Description
The image shows an DTC-003 (Round) Defrost Temperature Control, a critical bimetal safety device used in refrigerators and freezers to regulate the defrost cycle.
Core Function & Working Principle
This component acts as a temperature-sensitive switch that protects the evaporator from overheating during a defrost cycle:
- Activation: When the evaporator coils get cold enough for frost to build, the thermostat remains closed, allowing the defrost heater to receive power.
- Deactivation: Once the frost has melted and the coils reach a specific temperature (typically around
the bimetal disc inside expands and opens the circuit, shutting off the heater.
Technical Specifications
- Model Number: DTC-003 (Round Type).
- Type: Bimetal Thermostat (thermal cutout).
- Wiring: Features a 2-wire lead (red and white) for integration into the refrigerator’s wiring harness.
- Mounting: Includes a metal clip designed to snap directly onto the evaporator tubes for accurate temperature sensing.
Compatibility & Replacement
This part is a common universal replacement for major appliance brands:
- Compatible Brands: Whirlpool, Kenmore, Frigidaire, KitchenAid, Maytag, Amana, and Electrolux.
- Fixes Common Symptoms:
- Freezer section is too warm.
- Excessive frost or ice buildup on evaporator coils.
- Fridge runs too long or never shuts off.
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