6.2 FAULT CODES

Code

Descriptio

n

F1

Compressor IPM alar

m

F2

PFC/IPM alar

m

F3

Compressor start-up alarm

F4

Compressor phase loss

F5

Position detection circuit fault

FA

Phase current overcurrent protection

P2

DC BUS undervoltage protectio

n

E4

Communication alarm

F6

Board communication alarm

P3

AC input voltage protectio

n

P4

AC overcurrent protectio

n

P5

AC undervoltage protectio

n

F7

External air exchange coil sensor alarm

F8

Inlet pipe sensor alarm

E0

Outlet pipe sensor alar

m

E6

External air temperature sensor alar

m

E7

External air side fan motor alar

m

FE

EE alarm (external air side)

PA

Abnormal inlet air sensor temperature protectio

n

PI

Overheating protection on upper compressor section

PE

Refrigerant recirculation fault

PH

Outlet air temperature protectio

n

PC

External air exchange coil overload protectio

n

E3

DC fan feedback alarm

P6

Internal air exchange coil overload protection

P7

Antifreeze on internal air exchange coil

E2

Internal air exchange coil sensor alar

m

E1

Internal coil temperature sensor alar

m

P8

Internal circuit zero-crossing alar

m

EE

EE alarm (internal air side

)

E5

Condensate atomiser motor alar

m

E8

Fan feedback alar

m

FL

Internal condensate tray full alar

m

44