Code

Description

E01

Remote control detecting error from indoor unit,Address not set/Auto address failed. Check interconnecting wir-

ing etc. Re-address system.

E02

Remote detecting error from indoor unit,

E03

Indoor unit detecting error from remote,

E04

Indoor seeing error from outdoor. Qty of i/d units connected are less than qty set. Check; all i/d units are ON,

reset turn off all units wait 5min power up

E05

Indoor unit detecting error from outdoor unit, Error in sending comms signal

E06

Outdoor unit detecting error from indoor unit, Error in receiving comms signal

E07

Outdoor unit detecting error from indoor unit, Error in sending comms signal

E08

Incorrect setting indoor/controller, Indoor address duplicated

E09

Incorrect setting indoor/controller, Remote address duplicated or IR wireless controller not disabled

E10

Indoor unit detecting error from 'option' plug, Error in sending comms signal

E11

Indoor unit detecting error from 'option' plug, Error in receiving comms signal

E12

Auto addressing failed,Auto address connector CN100 shorted during auto addressing

E13

Indoor unit failed to send signal to remote controller

E14

Setting Failure, Duplication of master indoor units

E15

Auto addressing failed, Number of indoor units connected are less than number set

E16

Auto addressing failed, Number of indoor units connected are more than number set

E17

Group control wiring error, Main indoor unit not sending signal for sub indoor units

E18

Group control wiring error, Main indoor unit not receiving signal for sub indoor units

E20

Auto addressing failed, No indoor units connected

E24

Auto addressing failed, Error on sub outdoor unit

E25

Auto addressing failed, Error on outdoor unit address setting

E26

Auto addressing failed, Quantity of main and sub outdoor units do not correspond to the number set on main

outdoor unit P.C.B.

E29

Auto addressing failed, Sub outdoor unit not receiving comms for main outdoor unit

E31

Between units, Comms failure with MDC, does E31 remain after power is re instated? If so replace PCB. & power

PCB

Code

Description

F01

Indoor Heat Exch inlet temp sensor failure (E1)

F02

Indoor Heat Exch freeze temp sensor failure (E2)

F03

Indoor Heat Exch outlet temp sensor failure (E3)

F04

Outdoor Discharge temp sensor failure (TD) or (DISCH1)

F05

Outdoor Discharge temp sensor failure (DISCH2)

F06

Outdoor Heat Exch temp sensor failure (C1) or (EXG1)

F07

Outdoor Heat Exch temp sensor failure (C2) or (EXL1)

F08

Outdoor Air temp sensor failure (TO)

F10

Indoor inlet temp sensor failure

F11

Indoor outlet temp sensor failure

F12

Outdoor Intake sensor failure (TS)

F13

GHP - Cooling water temperature sensor failure

F16

Outdoor High pressure sensor failure

F17

GHP - Cooling water temperature sensor fault

F18

GHP - Exhaust gas temperature sensor fault

F20

GHP Clutch coil temperature fault

F23

Outdoor Heat Exch temp sensor failure (EXG2)

F24

Outdoor Heat Exch temp sensor failure (EXL2)

F29

Indoor EEPROM error

F30

Clock Function (RTC) fault

F31

Outdoor EEPROM error

Code

Description

H01

Compressor Fault, Over current (Comp1)

H02

Compressor Fault, Locked rota current detected (Comp1)

H03

Compressor Fault, No current detected (Comp1)

H05

Compressor Fault, Discharge temp not detected (Comp1)

H06

Compressor Fault, Low Pressure trip

H07

Compressor Fault, Low oil level

H08

Compressor Fault, Oil sensor Fault (Comp1)

H11

Compressor Fault, Over current (Comp2)

H12

Compressor Fault, Locked rota current detected (Comp2)

H13

Compressor Fault, No current detected (Comp2)

H15

Compressor Fault, Discharge temp not detected (Comp2)

H27

Compressor Fault, Oil sensor fault (Comp2)

H28

Compressor Fault. Oil sensor (connection failure)

H31

Compressor Fault. IPM trip (IMP current on temperature)

Code

Description

L01

Setting Error, Indoor unit group setting error

L02

Setting Error, Indoor/outdoor unit type/model miss-matched

L03

Duplication of main indoor unit address in group control

L04

Duplication of outdoor unit system address

L05

2 or more controllers have been set as 'priority' in one system - shown on controllers set as 'priority'

L06

2 or more controllers have been set as 'priority' in one system - shown on controllers not set as 'priority'

L07

Group wiring connected on and indvidual indoor unit

L08

Indoor unit address/group not set

L09

Indoor unit capacity code not set

L10

Outdoor unit capacity code not set

L11

Group contol wiring incorrect

L13

Indoor unit type setting error, capacity

L15

Indoor unit paring fault

L16

Water heat exch unit setting failure

L17

Miss-match of outdoor unit with different refrigerant

L18

4-way valve failure

L19

Water heat exch unit duplicated address

L21

Gas type setup failure

Code

Description

P01

Indoor unit fault, Fan motor thermal overload

P02

Outdoor unit fault, Compressor motor thermal overload, over or under voltage

P03

Outdoor unit fault, Compressor discharge temperature too high (Comp1) over 111 degC. Low on ref gas, exp

valve, pipework damage.

P04

Outdoor unit fault, High pressure trip

P05

Outdoor unit fault, Open phase on power supply. Check power on each phase, inverter pcb, control pcb

P09

Indoor unit fault, Ceiling panel incorrectly wired

P10

Indoor unit fault, Condensate float switch opened

P11

GHP - Water Heat exch low temp (frost protection) fault

P12

Indoor unit fault, Fan DC motor fault

P14

Input from leak detector (If fitted)

P15

Refrigerant loss, high discharge temp and EEV wide open and low compressor current draw.

P16

Outdoor unit fault, Open phase on compressor power supply

P17

Outdoor unit fault, Compressor discharge temperature too high (Comp2) over 111 degC. Low on ref gas, exp

valve, pipework damage.

P18

Outdoor unit fault, By-pass valve failure

P19

Outdoor unit fault, 4 way valve failure, i/door temp rises in cooling or fulls in heating. Check wiring, coil, pcb output,

valave operation.

P20

Ref gas, high temp/pressure fault, heat exch temp high C2, 55-60 degC, cooling over-load, sensor fault.

P22

Outdoor unit fan motor fault, fan blade jammed, check connections, does fan turn freely, motor resistance 30-

40ohm on each pair, no fan fault, yes pcb fault.

P26

Outdoor unit fault, Compressor overcurrent - check winding resistance, Inverter failure - check internal resistance

term HIC + & - to UVW 200-300Kohm or more

P29

Outdoor unit fault, Inverter circuit fault - Motor-current Detection Circuit (MDC) fault, check comp windings, sen-

sors C1 & TS, if ok possible pcb failure.

P30

Indoor unit fault, System controller detected fault on sub indoor unit

P31

Simultaneous operation multi control fault, Group controller fault