3-61
Check code
Operation cause
[17]
Current detect circuit system alarm
1. Defective wiring of IPDU P.C. board
2. Defective IPDU P.C. board
Check code
Operation cause
[18]
TE1 sensor alarm
TE1 sensor open/short
TE1 sensor open/short has been detected. Check disconnection of connector (TE1 sensor : CN505) circuit and
resistance value characteristics of sensor.
When the sensors are normal, replace outdoor P.C. board.
Check code
Operation cause
[1C]
Extension IC, EEPROM alarm
1. Outdoor unit power supply error
2. Interface P.C. board error
YES
NO
Check IPDU P.C. board.
Modify connection of wiring.
Is wiring connector on
IPDU P.C. board normal?
YES
NO
Check interface P.C. board.
Is there no irregularity of
outdoor unit power supply?
Check power supply voltage.
Modify power supply line.
Check noise from outside, etc.
