PRO81 - Universal Supco Refrigerator Relay & Overload

PRO81 – Universal Supco Refrigerator Relay & Overload

The Supco PRO81 Relay Overload is a high-quality universal aftermarket refrigerator compressor relay and overload combination designed for select 115V refrigeration systems. Manufactured by Supco, the PRO81 is engineered to restore reliable compressor start-up performance and overload protection in compatible domestic and light commercial refrigerators.

This universal relay and overload assembly is designed for compressors rated 1/12 HP to 1/5 HP at 115V, with push-on mounting for pin-type compressor terminals. It helps protect refrigerator compressor start windings from overheating while ensuring dependable compressor activation during normal cooling cycles.

Available from Appliance Kingdom with fast Canada-wide shipping for homeowners, landlords, and professional appliance repair technicians.

What Does the PRO81 Relay & Overload Do?

The refrigerator relay and overload assembly is a critical compressor starting component. It controls the compressor start circuit and protects the motor from excessive heat and electrical overload conditions.

The PRO81 performs two essential functions:

• Engages the compressor start winding during startup

• Disconnects the start winding once running speed is reached

• Protects the compressor against overheating and locked rotor conditions

• Prevents start winding burnout and compressor damage

Supco’s PRO series includes built-in locked rotor protection, which helps prevent overheating if the compressor fails to start properly. This improves refrigerator reliability and protects expensive sealed-system components.

Using the correct relay and overload specifications is essential for compressor safety, cooling performance, and long-term appliance operation.

Common Symptoms Indicating Replacement

A failed relay or overload assembly commonly causes refrigerator cooling problems such as:

• Refrigerator not cooling

• Compressor clicking on and off repeatedly

• Compressor fails to start

• Refrigerator interior warm despite power being on

• Intermittent cooling performance

• Compressor hums but does not run

• Overload trips repeatedly

• Burning smell or visible relay damage

If your refrigerator powers on but the compressor does not start or cycles improperly, replacing the PRO81 may restore normal cooling operation when relay failure is the root cause.

Compatibility Guidance

The PRO81 is designed for 115V refrigerator compressors rated from 1/12 HP to 1/5 HP with push-on pin-type terminals. It is commonly used in domestic refrigerators and light commercial refrigeration systems.

Before ordering, verify:

• Compressor voltage (115V)

• Compressor horsepower rating

• Terminal style compatibility

• Appliance model and compressor specifications

Because this is a universal replacement component, confirming exact compatibility before installation is strongly recommended.

The support team at Appliance Kingdom can help verify fitment before purchase.

Key Features & Benefits

• High-quality universal Supco replacement component

• Compatible with 115V compressors

• Supports 1/12 HP to 1/5 HP applications

• Push-on mounting for pin-type terminals

• Locked rotor compressor protection

• Helps prevent compressor overheating

• UL Recognized for safety compliance

• Designed for dependable refrigerator compressor startup

• Suitable for professional technicians and experienced DIY repairs

• Ships across Canada from a trusted Canadian appliance parts supplier

Installation Overview

Replacing a refrigerator relay and overload assembly is generally considered a moderate repair.

Installation typically involves:

• Disconnecting refrigerator power

• Accessing the compressor compartment

• Removing the failed relay/overload

• Installing the PRO81 onto compressor terminals

• Reconnecting wiring according to manufacturer specifications

• Testing compressor operation

Because improper installation can damage the compressor or electrical components, professional installation is recommended unless you have appliance electrical repair experience.

Community repair discussions frequently note that universal relay installation requires careful terminal identification and correct wiring alignment.

Canada-Wide Availability & Trusted Supplier

Appliance Kingdom supplies genuine OEM and premium replacement appliance parts to customers across Canada.

Canadian homeowners, landlords, and appliance repair professionals trust Appliance Kingdom for:

• Fast nationwide shipping

• Reliable appliance parts sourcing

• Knowledgeable compatibility support

• Quality replacement components that meet Canadian appliance service standards

Buyer Confidence & Support

When you purchase the PRO81 Universal Supco Refrigerator Relay & Overload from Appliance Kingdom, you receive:

• Trusted Supco aftermarket quality

• Reliable compressor protection performance

• Technical support for compatibility confirmation

• Fast Canadian shipping

• Confidence-backed appliance repair support