Midea
V6R
Series Service Manual
2.22 P32: Secondary current protection
Digital display output
Description
ï‚§ All units stop running.
ï‚§ Error code is displayed on the unit with the error.
Trigger / recover condition
ï‚§ Trigger condition: Refer to Part 3 6.4 Over-current Protection Control
ï‚§ Recover condition: Refer to Part 3 6.4 Over-current Protection Control
ï‚§ Reset method: Resume automatically.
Possible causes
ï‚§ Outdoor unit stop valves are closed.
ï‚§ Indoor load too large.
ï‚§ Power supply abnormal.
ï‚§ Sudden interruption of power to IDUs.
ï‚§ Excess refrigerant.
ï‚§ System contains air or nitrogen.
ï‚§ Poor condenser heat exchange.
ï‚§ High pressure side blockage.
ï‚§ Inverter module damaged.
ï‚§ Compressor damaged.
ï‚§ Outdoor main PCB damaged.
ODU stop valves are closed
The indoor load is too large
1
Make sure the combination ratio is less
than 130%
The power supply is abnormal
Check the power supply equipment
Sudden interruption of power to IDUs
Inspect the system and fix the error
Flowchart continued on next page …