Hitachi fault codes
What each code means, from Hitachi's own service literature, and which UK models it applies to.
Hitachi air conditioning
00100Refrigerant cycle fault (code 01)171 models00300Communication error, indoor ↔ outdoor (code 03)172 models00900Indoor thermistor defective (code 09)171 models01000Abnormal rotating numbers (indoor fan speed) (code 10)172 models01200Communication error, indoor ↔ outdoor (code 12) — RAK-PSE models192 models01300Data reading error (PSE: EEPROM · PED: IC401) (code 13)171 models01800Cleaning defective (auto-clean) (code 18) — RAK-PSE models221 models02000Human sensor defective (code 20) — RAK-PSE models202 models00201Peak current cut (code 02)178 models00301Compressor abnormal low-speed rotation (code 03)178 models00401Compressor switching failure (code 04)178 models00501Overload lower-limit cut (code 05)178 models00601OH (overheat) thermistor temperature rise (code 06)178 models00701Abnormal outdoor thermistor (code 07)178 models00901Communication error (code 09)178 models01001Abnormal power source (code 10)178 models01101Fan stop for strong wind (code 11)178 models01201Outdoor fan motor fault (code 12)178 models01301EEPROM reading error (code 13)178 models01401Active converter defective (code 14)178 models01501Abnormal PWB circuit (code 15)178 models01601High load stop (code 16)199 models
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