This site is aimed at professional installers and service technicians, and gives you easy access to alarm codes and technical data sheets for Airwell products.

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YDAA-050H-09M25

7SP063162

Technical data
Alarm code
Display—
Number of led blinkingON
Alarm code meaningIndoor units mode conflict(match with multi outdoor unit)
DisplayE0
Alarm code meaningEEPROM empty or damaged
DisplayE1
Alarm code meaningNo communication between indoor and outdoor unit
DisplayE2
Alarm code meaningZero crossing protection
DisplayE3
Alarm code meaningFaulty indoor fan motor
DisplayE4
Alarm code meaningIndoor ambiant temperature sensor T1 disconnected or short circuited
DisplayE5
Alarm code meaningIndoor exchanger temperature sensor T2 disconnected or short circuited
DisplayE7/EH0b
Alarm code meaningNo communication between indoor unit and display board
DisplayEC
Alarm code meaningrefrigerant circuit protection
DisplayEC 07
LED TimerOFF
Alarm code meaningNo fan motor feedback on outdoor unit board (DC fan motor only)
DisplayEC 51
Number of led blinking5
LED TimerOFF
Alarm code meaningOutdoor unit EEPROM parameter error
DisplayEC 52
Number of led blinking5
LED TimerOFF
Alarm code meaningOutdoor exchanger temperature sensor T3 disconnected or short circuited
DisplayEC 53
Number of led blinking5
LED TimerOFF
Alarm code meaningOutdoor ambiant temperature sensor T4 disconnected or short circuited
DisplayEC 54
LED TimerOFF
Alarm code meaningDischarge temperature sensor Tp disconnected or short circuited
DisplayEC 56
LED TimerOFF
Alarm code meaningIndoor exchanger temperature sensor T2B disconnected or short circuited
DisplayEH 00
Number of led blinking1
LED TimerOFF
Alarm code meaningEEPROM empty or damaged
DisplayEH 02
Number of led blinking3
LED TimerOFF
Alarm code meaningZero crossing protection
DisplayEH 03
Number of led blinking4
LED TimerOFF
Alarm code meaningFaulty indoor fan motor
DisplayEH 0b
LED TimerOFF
Alarm code meaningNo communication between indoor unit and display board
DisplayEH 60
LED TimerOFF
Alarm code meaningIndoor ambiant temperature sensor T1 disconnected or short circuited
DisplayEH 61
LED TimerOFF
Alarm code meaningIndoor exchanger temperature sensor T2 disconnected or short circuited
DisplayEL 01
Number of led blinking2
LED TimerOFF
Alarm code meaningNo communication between indoor and outdoor unit
DisplayEL 0C
LED TimerOFF
Alarm code meaningrefrigerant circuit protection
DisplayF0
Alarm code meaningOutdoor unit overcurrent protection
DisplayF1
Alarm code meaningOutdoor ambiant temperature sensor T4 disconnected or short circuited
DisplayF2
Alarm code meaningOutdoor exchanger temperature sensor T3 disconnected or short circuited
DisplayF3
Alarm code meaningDischarge temperature sensor Tp disconnected or short circuited
DisplayF4
Alarm code meaningOutdoor unit EEPROM parameter error
DisplayF5
Alarm code meaningNo fan motor feedback on outdoor unit board (DC fan motor only)
DisplayF6
Alarm code meaningIndoor exchanger temperature sensor T2B disconnected or short circuited
DisplayP0
Alarm code meaningPower board (IPM) or protection again high current
DisplayP1
Alarm code meaningProtection against overvoltage or low voltage
DisplayP2
Alarm code meaningHigh temperature protection on power board or compressor
DisplayP4
Alarm code meaningCompressor IPM problem
DisplayP5/–
Alarm code meaningIndoor units mode conflict(match with multi outdoor unit)
DisplayP6
Alarm code meaningHigh or low pressure protection
DisplayPC 00
LED TimerFLASH
Alarm code meaningPower board (IPM) or protection again high current
DisplayPC 01
LED TimerFLASH
Alarm code meaningProtection against overvoltage or low voltage
DisplayPC 02
LED TimerFLASH
Alarm code meaningHigh temperature protection on power board or compressor
DisplayPC 03
LED TimerFLASH
Alarm code meaningHigh or low pressure protection
DisplayPC 04
LED TimerFLASH
Alarm code meaningCompressor IPM problem
DisplayPC 08
LED TimerFLASH
Alarm code meaningOutdoor unit overcurrent protection