As a French 4-door refrigerator, the LMXS30786S shares its core mechanism with the rest of LG’s refrigerator lineup. On this platform, the dH fault code is one of the more common reasons it gets a service call. LG’s own US product page flags this exact model discontinued (read 24 September 2026); it is out of production but not out of the field, and it is exactly the kind of model that has nowhere else to turn for support.
Service calls on this refrigerator most often trace to one of a short list: the dH, CO or Od fault codes. We confirm which one applies against the model and serial number before ordering a part.
Key Features
- Electronic temperature control with a digital or touch display
- LED interior lighting
- French 4-door refrigerator
Most Common Issues on This Model
dH fault code — defrost heater fault, sometimes shown split as F dH
CO fault code — communication error between control boards
Od fault code — door held open past the alarm threshold