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Lg Mini Split H07 Error Code

Updated 2026-08-29 · review status: draft Draft - unverified

Quick answer

H 07 appears when connected LG indoor units are not set to compatible modes, such as one unit calling for heat while another calls for cooling or dry operation. The equipment is blocking operation because a shared system cannot heat and cool at the same time. Advisory DIY.

Severity: high · DIY difficulty: intermediate

Safety

TBD - must be written per-code before publish

What H07 means

H 07 appears when connected LG indoor units are not set to compatible modes, such as one unit calling for heat while another calls for cooling or dry operation. The equipment is blocking operation because a shared system cannot heat and cool at the same time. Advisory DIY.

Causes, ranked

  1. Causes not yet documented — verify against the service manual.

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Sources

  • SplitAtlas manual-sourced reference — verified 2026-08-29