SH201 - Universal Supco Refrigerator Defrost Heater, Aluminum, 23"

SH201 – Universal Supco Refrigerator Defrost Heater (Aluminum, 23")

The SH201 – Supco Refrigerator Defrost Heater, Aluminum, 23" is a high-quality non-OEM universal defrost heater designed for use in refrigerator evaporator systems to prevent ice buildup and ensure efficient cooling performance. Available from Appliance Kingdom (Canada-wide shipping), this replacement heater is commonly used by technicians and repair professionals to restore proper defrost cycles and improve refrigeration reliability across compatible refrigerator systems.

This component is engineered for continuous-duty operation and is widely used in refrigerator evaporator assemblies where ice accumulation can restrict airflow and reduce cooling efficiency.

Function & Importance of the Defrost Heater

The SH201 defrost heater plays a critical role in a refrigerator’s automatic defrost system. It is installed near the evaporator coil and activates during defrost cycles to melt accumulated frost and ice.

When functioning correctly, it ensures:

• Proper airflow across evaporator coils
• Stable and efficient cooling performance
• Prevention of ice block buildup on coils
• Protection of compressor from overworking due to airflow restriction

Because refrigeration systems rely on precise thermal balance, correct wattage and length specifications (15W, approx. 18" heating element with 23" leads) are essential for safe and effective operation.

Common Symptoms of a Faulty Defrost Heater

A failing or open defrost heater can lead to serious cooling issues in refrigerators, including:

• Excessive frost or ice buildup on evaporator coils
• Refrigerator not cooling properly while freezer runs excessively cold
• Warm fresh food compartment
• Reduced airflow inside the refrigerator
• Compressor running longer than normal
• Frost blocking air vents or evaporator fan
• Water leakage caused by improper defrosting

Replacing the defrost heater often resolves these issues when the heater is confirmed to be the failed component.

Compatibility Guidance

This is a universal-style defrost heater for refrigerator systems.

Before ordering:

• Confirm the exact heater length, wattage, and terminal configuration
• Verify refrigerator model number for compatibility
• Ensure physical fit within evaporator assembly space

Because this is a universal replacement part, compatibility depends on system design rather than a single brand or model.

Replaces Part Numbers

No verified OEM replacement or cross-reference part numbers were found from approved authoritative sources.
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Key Features & Benefits

• Universal non-OEM Supco replacement heater
• Designed for refrigerator defrost systems
• Aluminum construction for reliable heat distribution
• 15W low-power continuous operation
• Helps prevent ice buildup and airflow restriction
• Supports efficient compressor performance
• Suitable for professional technicians and appliance repair use
• Designed for long service life under refrigeration conditions

Installation Overview

Installation is considered moderate difficulty and typically requires access to the refrigerator evaporator compartment.

Basic installation notes:

• Disconnect refrigerator power before servicing
• Remove evaporator cover to access defrost heater area
• Carefully position heater around evaporator coil as originally installed
• Secure properly without modifying or cutting the heater
• Reassemble and test defrost cycle operation

Professional installation is recommended if the user is not experienced with refrigerator electrical components or sealed system layouts.

Canada-Wide Availability & Supplier Trust

Appliance Kingdom supplies refrigeration and appliance replacement parts across Canada, supporting homeowners, landlords, and appliance technicians nationwide.

Customers benefit from:

• Fast Canada-wide shipping
• Reliable sourcing for HVAC and appliance repair parts
• Support for part identification and compatibility checks
• Trusted supply chain for repair professionals

Buyer Confidence & Reassurance

• High-quality Supco universal replacement component
• Designed for dependable refrigerator defrost performance
• Helps restore cooling efficiency and reduce frost-related failures
• Compatibility verification support available before purchase
• Suitable for residential and commercial refrigeration repair needs