LG Air Conditioner Error Code 51
Indoor connection over capacity: total connected indoor unit capacity exceeds outdoor unit rated capacity (130% for 10HP, 115% for 4.5HP, 120% for 6HP).
SourceLG Air Conditioner - Service Manual: Heat Pump CRUN/CRNN Seriesp. 213, 232
The full 51 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
SourceLG Air Conditioner - Service Manual: Heat Pump CRUN/CRNN Seriesp. 213, 232
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
Where this code is documented
89 manuals in the MyPros+ library document this code for LG air conditioner.
Models covered by the manuals that document this code
- A2UW166FA1
- A8UW566FA0
- ABNH186HLAC
- ABNH246HLAC
- ABNH306GLAD
- ABNH606RLAD
- AMNC096TCC0
- AMNC126TCC0
- AMNC246BHA0
- AMNC306BGA0
- AMNC306TFC0
- AMNC366BGA0
- AMNC366TDC0
- AMNH076DZ*0
- AMNH076LQL0
- AMNH07GD4L0
- AMNH07GDE*0
- AMNH07GDZ*0
- AMNH096AP*1
- AMNH096BPA0
- AMNH096BTG0
- AMNH096DU*0
- AMNH096LQL0
- AMNH096LRL0
More models are covered than are listed here.
75,000+ service documents · 20,000+ error codes · 100+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax