SH226 - Genuine OEM Universal Refrigerator Defrost Heater
SH226 - Genuine OEM Universal Refrigerator Defrost Heater
The SH226 Genuine OEM Universal Refrigerator Defrost Heater is a high-quality replacement defrost heating component designed for refrigerator and freezer defrost systems. Manufactured by Supco, this universal refrigerator defrost heater helps eliminate frost accumulation on evaporator coils during automatic defrost cycles, ensuring efficient cooling performance and proper airflow throughout the appliance. The SH226 features a 40-watt, 115-volt heating element with an adhesive-backed aluminium foil design for simplified installation in compatible refrigeration applications. Available from Appliance Kingdom, this part ships across Canada for homeowners, landlords, facility managers, and appliance repair technicians.
A failed defrost heater is one of the most common causes of excessive frost buildup, reduced cooling efficiency, blocked airflow, and temperature inconsistencies in refrigerators and freezers. Replacing a defective heater can help restore normal automatic defrost operation and prevent recurring ice accumulation.
What Does the Refrigerator Defrost Heater Do?
The refrigerator defrost heater is responsible for melting frost and ice that naturally accumulate on the evaporator coils during normal operation. During the automatic defrost cycle, the heater warms the evaporator area, allowing accumulated frost to melt and drain away.
Proper defrost operation is essential because excessive frost buildup can restrict airflow, reduce cooling efficiency, increase energy consumption, and place additional strain on the refrigeration system. Using a quality replacement heater ensures consistent heat output and dependable defrost performance.
When a defrost heater fails, frost continues to accumulate on the evaporator coils, eventually interfering with airflow and temperature regulation throughout the appliance.
Common Symptoms Indicating Replacement
A defective refrigerator defrost heater may cause:
- Excessive frost buildup on evaporator coils
- Ice accumulation inside the freezer compartment
- Refrigerator section becoming too warm
- Freezer temperatures fluctuating unexpectedly
- Restricted airflow from vents
- Refrigerator running longer than normal
- Reduced cooling efficiency
- Repeated manual defrost requirements
- Frozen evaporator coils preventing proper circulation
If the heater has failed electrically or physically, replacement often resolves frost-related cooling issues. However, similar symptoms can also be caused by a faulty defrost thermostat, thermistor, control board, or wiring issue. Proper diagnosis is recommended before replacing components.
Compatibility Guidance
The SH226 is designed for use in refrigerator and freezer defrost applications.
Before ordering:
- Verify your appliance model number.
- Confirm the heater's specifications match your application requirements.
- Compare dimensions and electrical ratings with the original component.
- Contact Appliance Kingdom for assistance confirming compatibility.
Proper model verification helps ensure successful installation and reliable performance.
Key Features & Benefits
- Genuine quality refrigerator defrost heater
- Universal refrigeration application design
- 115-volt, 40-watt operation
- Approximately 10½" x 10½" heater size
- Pressure-sensitive adhesive backing for installation convenience
- Helps prevent excessive frost and ice accumulation
- Supports efficient cooling performance
- Designed for residential and commercial refrigeration applications
- Suitable for homeowners, landlords, maintenance personnel, and appliance repair professionals
- Built for dependable long-term operation in refrigeration environments
Installation Overview
Installation typically requires accessing the evaporator section of the refrigerator or freezer and replacing the existing heater assembly.
Difficulty is generally considered moderate, depending on appliance design and component accessibility.
Experienced DIY users familiar with appliance electrical repairs may be able to complete the installation. Because the repair involves electrical components and refrigeration system access, professional installation is recommended whenever diagnosis or installation procedures are uncertain.
Always disconnect power before servicing any appliance.
Canada-Wide Availability & Trusted Canadian Supplier
Appliance Kingdom supplies genuine OEM and high-quality replacement appliance parts to customers throughout Canada. Orders ship from Canada, helping provide dependable delivery and support for residential and commercial appliance repairs.
Whether you are maintaining a household refrigerator, rental property appliance, or commercial refrigeration unit, Appliance Kingdom offers reliable parts and expert assistance to help complete repairs efficiently.
Buyer Confidence & Quality Assurance
When you purchase the SH226 Genuine OEM Universal Refrigerator Defrost Heater, you benefit from:
- Reliable replacement quality
- Designed performance for refrigeration defrost applications
- Trusted Canadian supplier support
- Assistance with compatibility verification
- Confidence in restoring proper defrost system operation