ML50 - Genuine OEM Universal Refrigerator Defrost Thermostat, 50°

ML50 – Genuine OEM Universal Refrigerator Defrost Thermostat, 50°

The ML50 Genuine OEM Universal Refrigerator Defrost Thermostat, 50° is a refrigerator defrost system component designed to help regulate the automatic defrost cycle in refrigerators and freezers. This thermostat opens at approximately 50°F and closes at approximately 30°F, helping protect the evaporator from overheating during defrost operation while maintaining proper cooling performance. The ML50 features a moisture-resistant sealed design and is commonly used as a universal refrigerator defrost thermostat replacement. Appliance Kingdom offers fast Canada-wide shipping for homeowners, landlords, property managers, and appliance repair technicians.

A failing defrost thermostat can lead to frost accumulation, cooling issues, temperature fluctuations, and inefficient refrigerator operation. Replacing a defective thermostat often restores proper defrost functionality and helps maintain consistent refrigerator and freezer temperatures.

What Does the Refrigerator Defrost Thermostat Do?

The ML50 defrost thermostat monitors evaporator temperature during the refrigerator's automatic defrost cycle. When the evaporator reaches the designated temperature, the thermostat interrupts power to the defrost heater to prevent overheating and protect refrigeration components.

Using a thermostat with the correct temperature specifications is critical for proper refrigerator performance. A properly functioning thermostat helps:

• Prevent excessive frost buildup
• Protect evaporator components from overheating
• Support efficient cooling performance
• Maintain consistent refrigerator and freezer temperatures
• Improve overall system reliability

When a defrost thermostat fails, the refrigerator may not defrost properly, potentially leading to airflow restrictions, cooling problems, and excessive ice accumulation.

Common Symptoms Indicating Replacement

A faulty refrigerator defrost thermostat may cause:

• Heavy frost buildup on evaporator coils
• Refrigerator compartment too warm
• Freezer compartment too warm
• Refrigerator running longer than normal
• Cooling performance issues
• Ice accumulation restricting airflow
• Water leakage caused by improper defrost operation
• Inconsistent refrigerator temperatures

If the thermostat has been tested and confirmed defective, replacing it often resolves these symptoms. However, similar issues can also be caused by a failed defrost heater, control board, thermistor, timer, fan motor, or sealed-system problem. Proper diagnosis is recommended before replacing parts.

Compatibility Guidance

The ML50 is designed for use in refrigerator and freezer defrost systems.

Before ordering:

• Verify your appliance model number.
• Confirm the thermostat specifications match your existing component.
• Contact Appliance Kingdom for compatibility assistance if needed.

Model verification helps ensure proper installation and performance.

Replaces Part Numbers

Verified sources indicate ML50 is associated with the following replacement or cross-reference numbers:

• 32750
• ERML50
• AP5645807

Additional sources also reference:

• TJ32750
• AP2071241
• PS303516

These cross-references should always be verified against your appliance model before ordering.

Key Features & Benefits

• Genuine OEM-quality universal refrigerator defrost thermostat
• Opens at approximately 50°F
• Closes at approximately 30°F
• Moisture-resistant sealed construction
• Durable metal case design
• Helps prevent evaporator overheating
• Supports proper automatic defrost operation
• Designed for dependable long-term performance
• Suitable for homeowners and professional appliance technicians
• Meets demanding refrigeration repair requirements

Technical specifications include:

• 12-inch leads
• Rated 10A at 120VAC
• Rated 5A at 250VAC
• UL Recognized
• CSA Approved

Installation Overview

Replacing a refrigerator defrost thermostat generally requires access to the evaporator compartment behind the freezer panel.

Installation is typically considered moderate difficulty and may be suitable for experienced DIY users familiar with appliance repair procedures.

Because electrical testing and refrigeration component access may be required, professional installation is recommended when diagnosis is uncertain.

Always disconnect power before servicing the appliance.

Canada-Wide Availability & Trusted Canadian Supplier

Appliance Kingdom supplies genuine OEM and high-quality replacement appliance parts to customers across Canada. Orders ship from Canada, helping provide reliable delivery and support for appliance repairs nationwide.

Whether you're maintaining a household refrigerator, rental property, or commercial operation, Appliance Kingdom offers dependable parts and knowledgeable customer support.

Buyer Confidence & Quality Assurance

When you purchase the ML50 Genuine OEM Universal Refrigerator Defrost Thermostat, 50°, you receive:

• Trusted replacement quality
• Accurate temperature specifications
• Reliable refrigerator defrost performance
• Canadian supplier support
• Assistance with compatibility verification before purchase
• Confidence in fit, function, and long-term operation