PTC Starter Relay ZHB40-105P15 | Refrigerator Compressor Part

Refrigerator Compressor PTC Starter Relay with Overload Protection – ZHB40-105P15

Keep your refrigerator running smoothly with this reliable PTC Starter Relay (ZHB40-105P15). Designed for broad compatibility across a wide range of refrigerator models, this 2/4-pin compressor relay delivers dependable startup performance and built-in overload protection — all in a compact, easy-to-install package.

Made in Mainland China.

Why Choose This PTC Starter Relay?

• Wide Compatibility: Works with various refrigerator compressor models, making it an excellent universal replacement part for your cooling appliance.
• Built-In Overload Protection: Automatically safeguards your compressor from electrical surges and irregular operating conditions, extending the life of your appliance.
• Tool-Free Easy Installation: Simple plug-in design means you can swap out the old relay and install this one in minutes — no special tools or technical expertise required.
• Improved Energy Efficiency: Optimizes the compressor's starting mechanism to reduce energy draw and help lower your electricity costs over time.
• Durable Construction: Built from robust plastic and metal materials, engineered to withstand the demands of daily appliance operation for long-lasting reliability.

Specifications

Package Contents

• 1× Refrigerator Compressor PTC Starter Relay with Overload Protection (ZHB40-105P15)

Important Notes

• Actual color may vary slightly from images due to monitor display settings and lighting conditions.
• Please allow for minor measurement deviations.

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If you're working on appliance repairs or electrical DIY projects, check out these related items:

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• 1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler

External Resource

For electrical safety guidance when working on home appliances, refer to the U.S. Consumer Product Safety Commission – Home Electrical Safety.

Learn more: Hisense

Frequently Asked Questions

Q: What does a PTC starter relay do in a refrigerator compressor?

A: A PTC (Positive Temperature Coefficient) starter relay provides the initial electrical boost needed to start the refrigerator compressor motor. Once the compressor reaches operating speed, the relay's resistance increases and effectively disconnects the start winding, allowing the compressor to run efficiently on its own.

Q: How do I know if my refrigerator's PTC starter relay needs replacing?

A: Common signs include the refrigerator not cooling properly, the compressor clicking on and off repeatedly, or the compressor failing to start at all. Shaking the relay — if you hear a rattling sound — is another indicator that it may be faulty and due for replacement.

Q: Is the ZHB40-105P15 relay compatible with my refrigerator model?

A: This relay is designed for broad general compatibility with many common refrigerator compressor configurations. We recommend comparing the part number and pin layout (2-pin or 4-pin) with your existing relay or consulting your refrigerator's manual to confirm fitment before ordering.

Q: Does this relay require any special tools to install?

A: No. The plug-in design allows for straightforward installation without any specialized tools. Simply unplug your old relay and plug in the new one — making it a quick and convenient DIY repair.