This task covers:
Refrigeration Unit Service Tool Kit
General Safety Instructions_
Thermal Overload Switch
If compressor is being removed due to burnout, use care
when lifting to avoid touching compressor sludge. Acid
in sludge can cause burns.
Tie Down Straps
Disconnect wiring harness P10 from J10.
(On 3 phase models only.) With multimeter set on lowest OHMS scale, check for continuity between pins G
and F in connector J10. If there is no continuity between these pins, heater is bad and should be replaced.
Check continuity between pins D and E. If there is no continuity between these pins, and the compressor has
had time to cool down, the compressor motor internal overload switch (S8) is bad. On three phase units,
replace compressor. On single phase units, replace overload protector.