Sinclair SCV-EB Series Service Manual page 84

Condition 3: L0 error appears after the compressor has been running for a period of time and the compressor speed is
over 60rps
DIP Switch S1 setting is wrong
Inverter module has overheated
Inverter module is over-current
Replace the inverter module
Notes:
1. When replacing an inverter module, a layer of thermally conductive silica gel should be painted on the IPM module (on the reverse side of the inverter
module PCB).
2. Use clip-on ammeter to measure the compressor current, if the current is normal indicates the inverter module is failed, if the current is abnormal
indicates the compressor has failed.
Situation 4: L0 error appears occasionally/irregularly
The outdoor unit ventilation is not good
82
L0
No
No
2
No
2
L0
Refer to the wiring diagram to reset the
Yes
Repaint the thermally conductive silica
Yes
gel on the PFC and IPM modules (on the
reverse side of the inverter module PCB)
Yes
Replace the compressor
Yes
Ensure enough space for unit ventilation
S1 setting
1