R-Pro › Field cases › Air conditioning
Night/Quiet Mode Malfunction — User Reports & Diagnosis
Likely causes
Night mode = compressor RPM cut + low fan → 70% capacity
Check: Frequent user reports: ① 'Not cool at night' → check night mode (user set unknowingly). ② 'Hot on waking' → auto-night entry time (typically midnight-5am, temp 1-2°C up). ③ Remote 'moon'/'sleep'/'quiet' icon. ④ Quiet mode (outdoor ≤35dB) — under ambient >35°C, capacity often insufficient. Check remote/app log (LG ThinQ, Samsung SmartThings).
What to do: **Not a fault**: user education first. Demo turning off night mode. Moon/sleep icon = enable before bed, auto-OFF after 8 hr (LG/Samsung standard). **Real fault**: mode change ignored (signal, indoor PCB comm, no LED). **Recommend**: 8+ hr → use 'auto' mode (auto-adjusts ~26°C). High humidity (Jul-Aug monsoon) → disable night mode, run normal.
30%+ of 'not cool' reports = unaware night mode. Demo with remote, say 'now operating normally'. Charge trip fee but itemize 'unit OK, mode advisory' (dispute prevention). Elderly: don't recognize icons → advise app notification via family (LG ThinQ, Samsung SmartThings). Jul-Aug: disable night mode (monsoon 80% RH needs full run).
All 565 cases work offline in R-Pro, with error codes for 62 brands and P-T data for 108 refrigerants.
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