Systems with hermetic compressors seldom requires charging with oil. When a leak occurs, oil escapes with the refrigerant and must be replaced for proper lubrication.…

In refrigeration repairs, a pinch-off tool is used to seal off copper tubing up to three-eighth inch in diameter. Figure 45g shows a typical pinch-off…

Sometimes a wax buildup or dirt obstructs the passage of refrigerant through a capillary tube. Due to its length, the capillary tube may run through…

A hard start kit is a combination relay, start capacitor, and overload protector. Primarily, this kit (see fig. 47a) was designed to start older compressors…

So far we have talked only about the kind of hermetic motors installed in residential units, the split-phase type. These are called hermetic because they…

Each manufacturer has a color code for the wiring in the circuit. The chart above shows the color coding for those wires connected to the…

Occasionally you will encounter some compressor terminals which have no markings (or which may have been obliterated). There is an easy way to determine the…

Another problem leading to compressor failure is regular wear and tear. The compressor runs without being able to create the necessary pressure difference in the…

When the two ohmmeter probes touch any two compressor terminals, the meter should register an ohm reading. Otherwise, the compressor is defective and it must…

1. Disconnect the power supply. 2. Remove the compartment cover, compressor terminal cover, start relay, and the wire connecting the overload protector to the common…