Fault Code L9

Fault: Malfunction of inverter compressor startup error (Stall prevention)
The stop valve is not opened
Defective compressor
Error in wire connections to compressor
Large differential pressure before compressor startup Defective inverter PCB
 

For Daikin split and multi-split air conditioning systems included wall-mounted, duct-connected, floor-standing, multi-flow, stylish, european, ururu sarara & cassette-type units.
If molded case circuit breakers or earth leakage circuit breakers have tripped, do not reset the breaker immediately without first checking for any problems with insulation of equipment.
Resetting breakers without a check of insulation may cause damage to equipment.