Service manual

Section 7 Electrical Specifications
7-5
Compressor Overload Protector
Function
Shuts down the compressor if an overcurrent
condition exists.
Check Procedures
WARNING
Disconnect the electric power to the freezer
before proceeding with the following steps.
Check the continuity of the external overload
protector.
1. Disconnect the wires from the overload
protector from other components.
2. Check the continuity of the overload protector.
Results of check Action
Continuity Overload protector is OK
No continuity
Allow the compressor to
reach room temperature and
check again
No continuity at
room temperature
Replace
Start Relay
Function
A relay used to disconnect the start winding.
Check Procedures
1. Disconnect the wires from the start relay. If the
relay must be moved, keep it upright.
2. Check the continuity at the contact terminals.
Results of check Action
Continuity Replace the relay
No continuity Relay is OK
3. Check continuity at the relay coil terminals.
Refer to the wiring diagram for terminal
identification.
Results of check Action
Continuity Relay is OK
No continuity Replace the relay