Sanyo AHX1252 Manual Do Utilizador

3-5

Trouble Diagnosis

3. W-2WAY ECO-i Alarm Codes

W-2WAY ECO-i Trouble Diagnosis

3-10
3-10
3-11
3-11
3-11

3-12

3-14
3-14
3-15

3-15
3-15
3-14

3-15
3-16

3-16
3-16
3-17

Alarm code

Alarm meaning

Page

E06

Outdoor unit failed to receive serial communication signals from indoor unit.

E12

Automatic address setting start is prohibited.

E15

Automatic address setting alarm (too few units)

E16

Automatic address setting alarm (too many units)

E20

No indoor units at automatic address setting.

3-6
3-6
3-6
3-7
3-7

3-7

3-8
3-8
3-8

3-9
3-9

3-9

E24

Outdoor unit (INV) failed to receive communications from another outdoor

unit (constant-speed).

E25

Outdoor unit address setting failure (duplication)

E26

Mismatch in outdoor unit quantity

E29

Outdoor unit failed to receive communication from relay control unit

F04

Compressor 1 discharge temperature sensor trouble

F05
F22

Compressor 2 discharge temperature sensor trouble
Compressor 3 discharge temperature sensor trouble

F06

Gas temperature sensor trouble at outdoor heat exchanger 1 (In)

F07

Liquid temperature sensor trouble at outdoor heat exchanger 1 (Out)

F08

Outdoor air temperature sensor trouble

F12

Compressor intake temperature sensor trouble

F16

High-pressure sensor trouble

F31

Outdoor unit non-volatile memory (EEPROM) trouble

3-11
3-10
3-10

F17

Low-pressure sensor trouble

F23

Gas temperature sensor trouble at outdoor heat exchanger 2 (In)

F24

Liquid temperature sensor trouble at outdoor heat exchanger 2 (Out)

H11

Constant speed compressor 2 overcurrent alarm

3-12

H03

Compressor CT sensor disconnected or short-circuit.

Compressor 3 overcurrent alarm

H12

Constant speed compressor 2 lock current alarm

Compressor 3 lock current alarm
Compressor 3 CT sensor disconnected or short-circuit

H05

Compressor 1 discharge temperature sensor disconnected

Compressor 3 discharge temperature sensor disconnected

3-13

H06

Low-pressure trouble in refrigerant circuit.

H13

Compressor 2 CT sensor disconnected or short-circuit

H15

Compressor 2 discharge temperature sensor disconnected

3-14
3-15

H22

H21

H23
H25
H31

HIC trouble alarm

L04

Outdoor unit address duplication

L05

Duplicated indoor unit priority (alarm at priority indoor units)

L06

Duplicated indoor unit priority (alarm at non-priority indoor units)

3-17
3-17

L10

Outdoor unit capacity not set

L17

Outdoor unit model mismatch

3-17

L18

4-way valve operation failure.

3-19

3-18

3-20
3-20
3-18
3-18
3-21
3-21
3-21

3-22
3-23

P03

Compressor 1 discharge temperature trouble

P04

High-pressure switch activated

P05

Reverse phase (or missing phase) detected, capacity mismatch

P16

Compressor 1 overcurrent

P17

Compressor 2 discharge temp trouble

P18

Compressor 3 discharge temp trouble

P22

Fan motor trouble

P26

Inverter compressor high-frequency overcurrent alarm

P29

Inverter compressor missing phase or lock alarm

CHECK blinking (1)

Blinking on the wired remote controller

CHECK blinking (2)

SM830157_W-2WAY_ECO-i.indb 5

2007/06/08 14:23:43