This is the most-thumbed section. The V4 Plus uses a 4-digit LED code on the outdoor main PCB. The manual lists over 100 error codes, such as:
| Error Code | Description | Common Fix | |------------|-------------|-------------| | P0 | IPM Module Overcurrent | Check compressor winding resistance, replace IPM board | | P4 | Compressor Discharge Temp > 115°C | Low refrigerant charge, expansion valve stuck closed | | E1 | High pressure protection | Condenser coil dirty, fan motor failure, overcharge | | Ed | Communication fault between ODU and IDU | Broken H1/H2 wiring, wrong addressing | | L5 | Outdoor fan motor stall | Replace fan motor or check DC bus voltage | midea vrf v4 plus service manual
The manual provides a step-by-step decision tree for each code, which is invaluable for reducing downtime. This is the most-thumbed section
Issue: Communication Error (E3/E4)
Issue: Compressor Lockout
Midea VRF systems require proper addressing to function. Issue: Compressor Lockout Midea VRF systems require proper