Sanyo CHDX07263, CHDXR07263, CHDXR09663 Contents of Remote Controller Switch Alarm Display

1. Contents of Remote Controller Switch Alarm Display

W-2WAY ECO-i SYSTEM Trouble Diagnosis

5

ON: Blinking:

OFF:

Wired

Wireless

remote

remote controller

control

receiver display

display

Possible cause of malfunction

Operation

Timer

Standby for heating

Serial

Remote controller is detecting

Error in receiving serial communication signal. (Signal from

communication

error signal from indoor unit.

main indoor unit in case of group control) Outdoor system

Operating lamp

errors

address, indoor unit address, or indoor unit address

<E01>

blinking

Mis-setting

independent/main/sub unit setting has not been made.

(Auto address is not completed.)

Error in transmitting serial communication signal.

<E02>

Indoor unit is detecting error signal from remote controller and system controller.

<<E03>>

Indoor unit is detecting error

• Error in receiving serial communication signal.

signal from outdoor unit.

• When turning on the power supply, the number of

connected indoor units does not correspond to the number

E04

Heating ready lamp

set. (Except R.C. address is “0.”)

blinking

• Group wiring failure of indoor units in the refrigerant system

(occurring when remote controller is operated immediately

after automatic address setting)

Outdoor unit is detecting error

• Error in receiving serial communication signal.

signal from indoor unit.

• There is an indoor unit which does not send signals when

E06

the power is ON.

Improper setting

• Indoor unit address setting is duplicated.

<<E08>>

• Duplicated remote controller “main” setting.

<<E09>>

Operating lamp

Improper setting

Automatic address setting start is prohibited.

blinking

AP pin was short-circuited at time when automatic address

E12

setting was started.

Indoor unit communication

Error of main indoor unit in receiving serial communication

E18

error of group control wiring.

signal from sub indoor units.

During auto. address setting,

Number of connected indoor units is less than the number set.

E15

number of connected units

Number of connected indoor units is more than the number set.

E16

does not correspond to number

No indoor unit is connected during auto. address setting.

E20

Heating ready lamp

set.

Main outdoor unit is detecting error signal from sub outdoor unit.

E24

blinking

Duplicated outdoor unit address.

E25

Mismatch in “No. of outdoor units” setting.

E26

Error of sub outdoor unit in receiving serial communication

E29

signal from main outdoor unit.

Improper setting

Connected indoor unit is not a multi unit.

<<L02>>

Duplication of main indoor unit address setting in group control.

<L03>

Duplicated indoor unit priority (priority indoor unit).

L05

Operating and heating

Duplicated indoor unit priority (non-priority indoor unit) and

L06

ready lamps blinking

outdoor unit.

simultaneously

Group control wiring is connected to individual control indoor unit.

L07

Indoor unit address is not set.

L08

Capacity code of indoor unit is not set.

<<L09>>

Mismatch of outdoor unit type.

L17

Operating and heating

Duplication of outdoor R.C. address setting.

L04

ready lamps blinking

simultaneously

Capacity code of outdoor unit is not set.

L10

4-way valve operation failure

L18

Thermistor

Indoor unit

Indoor coil temp. sensor (E1)

<<F01>>

Operating and

fault

Indoor coil temp. sensor (E3)

<<F03>>

timer lamps blinking

Indoor suction air (room) temp. sensor

<<F10>>

alternately

Indoor discharge air temp. sensor

<<F11>>

Thermistor fault

Outdoor unit

Compressor 1 (INV) discharge temp. sensor

F04

Compressor 2 (constant speed) discharge temp. sensor

F05

Operating and timer

lamps blinking

Outdoor air temp. sensor

F08

altemately

Heat exchanger 1 liquid temp. sensor

F07

Heat exchanger 1 gas temp. sensor

F06

Continued

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