Fault Codes / Samsung

53 codes

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• E201 — Communication matching error (indoor units count mismatch).
• E221 — Outdoor unit temperature sensor error.
• E407 — Compressor down due to high pressure protection.
• E461 — Compressor startup failure error.
• E464 — IPM overcurrent protection (short circuit or lock).
• E554 — Refrigerant gas leak detection.

DVM / Split

• E101 — Indoor/outdoor communication error.
• E102 — Communication error indoor ↔ outdoor (tracking).
• E108 — Duplicate address (indoor/outdoor).
• E121 — Room temperature sensor (Room-TH) fault.
• E122 — Indoor heat exchanger inlet sensor (EVA-in) open/short.
• E123 — Indoor heat exchanger outlet sensor (EVA-out) open/short.
• E154 — Indoor fan error.
• E163 — E163 = indoor unit EEPROM option-code error (not a generic EEPROM fault) — usually a misconfigured option code after a PCB swap or reinstall. Fix: reset option code via remote per service manual.
• E202 — Communication error: outdoor not receiving from indoor.
• E206 — Outdoor PBA communication (HUB/FAN/INV) error.
• E206-C001 — Outdoor PBA communication: HUB PBA error.
• E206-C002 — Outdoor PBA communication: FAN PBA error.
• E206-C003 — Outdoor PBA communication: INV PBA error.
• E206-C004 — Outdoor PBA communication: INV2 PBA error.
• E231 — Outdoor condenser (COND) temperature sensor fault.
• E251 — Discharge temperature sensor fault.
• E320 — OLP (compressor overload) temperature sensor fault.
• E416 — Discharge temperature too high (DIS-TH over).
• E422 — Outdoor EEV (expansion valve) self-diagnosis error.
• E440 — Heating operation prohibited (outdoor temp too high).
• E441 — Cooling operation prohibited (outdoor temp too low).
• E458 — Outdoor fan motor 1 error.
• E462 — Total current / power-limit control (compressor stopped).
• E465 — Compressor overload (V-limit/overcurrent).
• E466 — DC link over-/under-voltage.
• E468 — Current sensor error (inverter).
• E469 — DC voltage sensor error.
• E470 — Outdoor EEPROM read/write error.
• E475 — Outdoor fan motor 2 error.
• E484 — PFC overload.
• E500 — IPM (IGBT) over-temperature.

DVM PLUS III

• E215 — Indoor unit's address setting error on the MCU (there is same address among the MCUs).
• E218 — Installed indoor unit count exceeds the MCU settings.
• E307 — Oil balance temperature sensor malfunction.
• E425 — Reverse phase or phase open (3-phase wiring of outdoor unit, R-S-T-N).
• E440 — Heating operation prohibited because ambient temperature exceeds 30°C.
• E453 — Overload error of outdoor unit's motor (by temperature).
• E456 — Over current error of outdoor unit's motor.
• E477 — Liquid refrigerant incoming protection error, associated with sump temperature sensor issue.
• E563 — Model mismatching of indoor unit.
• E603 — Communication packet error (baud rate error).
• E608 — Can't detect ERV controller.
• E618 — The connected indoor units to ERV exceeded 16 units.
• E652 — Two wired remote controllers were set to the master mode.
• E654 — Memory data error in the wired remote controller (MWR-WS00).
• P701 — Floating switch error of indoor unit (1st detection).
• P703 — EEV opening error of indoor unit (1st detection).