Back Bar Service Manual
Return to Table of Contents Troubleshooting Guide - Electrical System Page 4-1
4.0 Troubleshooting Guide – Electrical System
Compressor is not
running.
No power to condensing unit.
Check condensing unit is plugged in.
Check power at internal receptacle.
No call for cooling from control.
Check control settings or for bad control.
Incorrectly wired connections in
condensing unit.
Verify wiring per wiring diagram, Section
7.2. Reconnect wires if needed.
Incorrect control settings.
Return to factory settings.
See Sections 7.5.1 and 7.5.2.
Restore power to unit.
Refer to information plate. See Section
1.2 and Table 7-1
Refer to Control not functioning.
Starting device is not operational (start
relay/capacitor).
Replace compressor electrical
components.
Replace compressor per Section 6.14.
Condenser fan is not
running.
Restore power to unit.
Refer to information plate. See Section
1.0 and Table 7-1
Incorrectly wired harness.
Verify wiring per wiring diagram, Section
7.2. Reconnect wires if needed.
Replace condenser fan per Section 6.13.
Evaporator fan is not
running.
No power to evaporator fan motor.
Restore power to unit.
Refer to information plate. See Section
1.0 and Table 7-1
Incorrectly wired harness.
Verify wiring per wiring diagram, Section
7.2. Reconnect wires if needed.
If Evaporator fan is still not running…
Replace evaporator fan per Section 6.13.
BBSLP series ONLY: No power to/from
DC inverter/driver (12V).
If no power: restore power, replace. Refer
to Section 1.1.