The compressor inputs the low-pressure, low-temperature gas from the evaporator and compresses it to high-temperature, high-pressure gas to feed the condenser. The refrigerant completes its circuit through the sealed system to repeat the cycle.

Follow the usual rules for handling and replacing a compressor. Keep it dry. Do not expose it to over- or under-current or -voltage. When soldering the lines to the compressor, remember it is machined to tolerances of 1 micron and hermetically sealed in a dust- and moisture-free environment. Use extreme caution when making repairs.

Avoid using a flame of torch when the refrigeration system uses R-600a or another FLAMMABLE refrigerant. The FIRE and EXPLOSION risk is REAL!

Use a flat blade screwdriver to pry the cover off the PTC (Positive Temperature Coefficient) and overload protector (OLP) on the side of the compressor. Be sure the product is unplugged before sticking a screwdriver in it.

The PTC (positive temperature coefficient) allows current to flow through both the starting coil and the running coil of the motor. Heat is generated in this process, and if the PTC does not have sufficient time to cool, it will not allow the starting coil to be energized and the motor will not start.

The OLP (overload protector) is attached to the compressor. It prevents the compressor motor from being started.

Do not adjust the screw on the OLP for any reason.

PTC and OLP devices may appear identical, but should always be checked for the correct electrical ratings. Use only authorized parts for replacement. Always order by model number and serial number.