Sinclair SCV-750EB Service Manual page 82

5.6 E8 Troubleshooting
Digital display output
Description
Power supply phase sequence protector output error

When this error occurs in the main unit, all units stop running. When this error occurs in the slave unit, the slave unit stops

running.
Error code is displayed on main PCB and user interface.

Possible causes
Power supply phases not connected in correct sequence or lose.

Power supply terminals or Power phase protector wire connection loose.

Power supply abnormal.

Damaged main PCB.

Damaged power phase protector.

80