Sanyo Wall Mounted Air conditioner error codes

A = OFF B = Blinking C = ON (Illuminated)

Indication on indoor unit

Qutlet (3)Timer (2)Operation (1)Code Diagnotice itemDiagnotics contents
AABS01Room temperature sensor failure(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(short-circuit detection only for the humidity sensor)
(3) Indoor/outdoor circuit board failure
ABAS02Indoor heat exchanger sensor failure(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(short-circuit detection only for the humidity sensor)
(3) Indoor/outdoor circuit board failure
ABBS03Humidity sensor failure(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(short-circuit detection only for the humidity sensor)
(3) Indoor/outdoor circuit board failure
BAAS04Compressor temperature sensor failureDiagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(3) Outdoor circuit board failure
BABS05Outdoor heat exchanger sensor failureDiagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(3) Outdoor circuit board failure
BBAS06Outdoor air temperature sensor failureDiagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(3) Outdoor circuit board failure
BBBS07Outdoor electrical current detection failureOutdoor circuit board failure
AACE01Indoor/outdoor communications failure (serial communications)(1) Mis-wiring (2) AC power failure (3) Blown fuse (4) Power relay failure
(5) Indoor or outdoor circuit board failure
ACAE02• HIC circuit failure • Power Tr (transistor) circuit failure(1) HIC or power Tr failure (2) Outdoor fan does not turn. (3) Instantaneous power outage
(4) Service valve not opened. (5) Outdoor fan blocked. (6) Continuous overload operation
(7) Compressor failure (8) Outdoor circuit board failure
ACCE03Outdoor unit external ROM (OTP data) failure(1) External ROM data failure (2) Outdoor circuit board failure
CAAE04Peak current cut-off(1) Instantaneous power outage (2) HIC or power transistor failure
(3) Outdoor circuit board failure
CACE05PAM circuit failure .Active circuit failure(1) Outdoor circuit board failure (2) Outdoor power supply voltage failure
CCAE06Compressor discharge overheat prevention activated(1) Electric expansion valve failure (2) Capillaries choked (3) Shortage of refrigerant
(4) Continuous overload operation (5) Outdoor fan does not rotate (6) Outdoor circuit board failure
CCCE07Indoor fan operating failure(1) Fan motor failure (2) Contact failure at connector (3) Indoor circuit board failure
BBCE084-way valve switching failure -Indoor zero-cross failure(1) 4-way valve failure (heat pump model only)
(2) Outdoor circuit board failure
BCBE09No-refrigerant protection(1) Service valve not opened. (2) Shortage of refrigerant
BCCE10DC compressor drive circuit failure(1) Open phase (2) Outdoor circuit board failure
CBBE11Outdoor fan operating failure(1) Fan motor failure (2) Contact failure at connector (3) Outdoor circuit board failure
CBCE12Outdoor system communications failure.
Outdoor high-pressure SW.
OLR operation.
Outdoor power supply open phase.
Outdoor coil freezing.
(1) Mis-wiring (2) Blown fuse (3) Power relay failure (4) Open phase
(5) Outdoor circuit board failure (6) Compressor failure
CCBE13Freeze-prevention operation activated(1) Indoor fan system failure (2) Shortage of refrigerant (3) Low-temperature operation