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AC Pre-Season Checkup — 11-Item Tech Standard Checklist
Likely causes
11-item standard inspection
Check: **11-item tech standard**: ① clean/replace filter ② clean indoor/outdoor coils ③ clean drain pump and hose (2L water test, 90 sec) ④ insulation sweating/cracks ⑤ compressor shell temp during commissioning ⑥ run current with clamp meter (RLA 1.0–1.2×) ⑦ suction/discharge pressure (P-T chart compare; R-410A typical at 25°C: suction 130 psi, discharge 400 psi) ⑧ superheat/subcooling ⑨ leak test soap bubble + electronic detector (flare/service ports) ⑩ controls/remote/error code ⑪ NTC resistance check (ohm meter). **Samsung/LG pre-season** = free dispatch (1588-3366/1544-7777).
What to do: After inspection = service each finding. Pass all 11 = write commissioning report and hand over. Report records 5 measurements (CFM, TESP, high/low pressure, superheat, subcooling) + mandatory photos. Cloud backup (R-Pro app) + paper copy to customer. **Partial faults found** = quote, then service with user consent. **Visit fee**: free (OEM pre-season) / KRW 50–100k (independent tech inspection).
**Korean timing**: late April–early May best (before June–Sept peak). **Channels**: Samsung 1588-3366 / LG 1544-7777 / Carrier 1588-8866 / WiniA 1577-5311. **Independent techs**: 30–60 min per unit + photos/measurements mandatory. After season peak heat hits = 1–2 week wait common — book pre-season. **Filter cleaning every 2 weeks** = teach user to do themselves.
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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