Customer Questions and Answers for Ptc Starter (Compressor Start Device) by Mcf

This PTC starter is a thermistor-based compressor start device that helps the refrigerator compressor start reliably, reducing hard starts and improving overall cooling performance when the start circuit is functioning correctly. What it does:

• Provides a timed boost to the compressor start winding using a positive temperature coefficient (PTC) thermistor
• Helps prevent compressor hard starts, humming, or failure to start
• Senses temperature change in the start circuit to cut out the start assist once the compressor is running
• Commonly used in single-phase refrigeration compressors with a PTC-style start circuit

• Disconnect power to the appliance before servicing to avoid electrical shock
• Handle terminals gently and ensure secure, corrosion-free connections