CH46
LG Refrigerant Distribution or Multi-Split Port Error

System shows CH46 and may not operate normally.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Incorrect connection of indoor units to outdoor multi-port, Closed or mis-set electronic expansion valves, Incorrect piping configuration

How to Fix / Troubleshooting

Safety: Multi-split systems are complex; do not attempt to alter refrigerant piping yourself. Turn off power before any inspection.

Homeowner checks:

  • Verify installation history: If CH46 appeared after adding or moving indoor units, inform the technician of all changes.
  • Check for obvious kinks or damage: Inspect visible refrigerant lines for severe bends or crushing.

Technician required: A professional must verify piping connections, port assignments, and expansion valve operation using LG service procedures and tools.

Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Multi-Split Distribution Manifold
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements