York YVAG012 Operation & Maintenance Manual page 43

TABLE 12– DESCRIPTION OF FAULT CODE（020~040）
DESCRIPTION
AI1 Refrigerant inlet accumulator temperature sensor fault
AI2 Suction pressure transducer fault
AI3 Discharge temperature sensor fault
AI4 Ambient temperature sensor fault
AI5 System leaving water temperature sensor fault
AI6 System return water temperature sensor fault
AI7 Unit leaving water temperature sensor fault
AI8 Coil temperature sensor fault
AI9 Economizer inlet temperature sensor fault
AI10 Economizer outlet temperature sensor fault
DI1 Water flow switch fault or water pump overload alarm
DI3 Over pressure alarm
DI5 Power failure
Communication failure ( failure on 1# unit is between principal unit and wire
controller while others for principal and subordinate unit.）
Conflict setting of unit model type
Excessive lower ambient temperature for cooling mode
Excessive lower system leaving water temperature for cooling mode
Excessive higher system leaving water temperature for heating mode
Communication failure between principal unit and T8600 or BAS
Freezing protection in winter
Excessive lower unit leaving water temperature for cooling mode
Excessive higher unit leaving water temperature for heating mode
Excessive lower unit leaving water temperature for heating mode
Excessive higher discharge temperature
Freezing protection of BPHE
Communication failure of unit （between Mainboard and driver）
Mismatching of driver type
Compressor driver alarm
Excessive higher speed of fan 1
Excessive higher speed of fan 2
Excessive lower speed of fan 1
Excessive lower speed of fan 2
Inverter pump communication
drive failure
Inverter pump
Mainboard hardware failure
Mainboard and Fan1 communication failure
JOHNSON CONTROLS
Cooke Industries - Phone: +64 9 579 2185 Email: sales@cookeindustries.co.nz
FORM NO.: 6U5M-A11M-NB-EN
FAULT CODE
1A
2A
3A
4A
5A
6A
7A
8A
9A
10A
1d
3d
5d
1E
2E
4E
6E
7E
9E
10E
11E
13E
15E
1F
9F
2p
4p
6p
8p
9p
10p
11p
12p
13p
14p
15P
Web: www.cookeindustries.co.nz
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