Contents of remote controller switch alarm display, Trouble diagnosis – Sanyo CHX06052 User Manual

Page 161

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3-3

Trouble Diagnosis

1. Contents of Remote Controller Switch Alarm Display

Remote controller is
detecting error signal from
indoor unit.

Indoor unit is detecting error
signal from outdoor unit.

Outdoor unit is detecting error
signal from indoor unit.

Improper setting

Indoor unit communication
error of group control wiring.

During auto. address setting,
number of connected units

does not correspond to
number set.

Improper setting

<E01>

<E02>

<E06>

<<E03>>

E04

E08

<<E09>>

E12

E18

E15

E16

E20

E25

E26

<L03>

L02

L05

L06

L07

L08

<<L09>>

L17

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

(Auto address is not completed.)

Error in receiving serial communication signal.
(Signal from main indoor unit in case of group control)

Error in transmitting serial communication signal.

indoor units does not correspond to the number set. (Except R.C.

address is “0.”)

Indoor unit address setting is duplicated.

Error of main indoor unit in receiving serial communication signal
from sub indoor units.

Duplicated remote controller “main” setting.

power is ON.

Automatic address setting start is prohibited.
AP pin was short-circuited at time when automatic address setting
was started.

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

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

Mismatch in “No. of outdoor units” setting.

Duplication of main indoor unit address setting in group control.

Group control wiring is connected to individual control indoor unit.

Indoor unit address is not set.

Capacity code of indoor unit is not set.

Duplicated indoor unit priority (priority indoor unit).

outdoor unit.

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

No indoor unit is connected during auto. address setting.

Duplicated outdoor unit address.

Mismatch of outdoor unit type.

Serial
communication
errors
Mis-setting

Continued

Connected indoor unit is not a multi unit.

L04

Duplication of outdoor R.C. address setting.

Capacity code of outdoor unit is not set.

L10

Operating
lamp blinking

Heating ready
lamp blinking

Operating and heating
ready lamps blinking
simultaneously

Heating ready
lamp blinking

Error in receiving serial communication signal.
When turning on the power supply, the number of connected

Error in receiving serial communication signal.
There is an indoor unit which does not send signals when the

Wired

remote
control

display

Wireless

remote controller

receiver display

ON:

Blinking:

OFF:

Operating
lamp blinking

Possible cause of malfunction

Indoor unit

Thermistor
fault

<<F01>>

<<F03>>

<<F10>>

<<F11>>

Indoor coil temp. sensor (E1)

Indoor coil temp. sensor (E3)

Indoor suction air (room) temp. sensor (TA)

Indoor discharge air temp. sensor (BL)

Operating and timer
lamps blinking
alternately

Outdoor unit

No current detected when
compressor was ON.

Protective
device

Thermistor
fault

Compressor 1 (INV)

Failure of nonvolatile memory IC (EEPROM) on indoor unit control PCB

Failure of nonvolatile memory IC (EEPROM) on outdoor unit control PCB

<<P09>>

<<P01>>

<<P10>>

F29

F31

H03

Indoor unit

P05

Reverse phase (missing phase) detected.

P16

DCCT, ACCT overcurrent (compressor less than 80 Hz)

P22

P26

P29

Outdoor unit fan trouble

P14

O2 sensor activated

Float switch is activated.

Thermal protector in indoor unit fan motor is activated.

P03

Compressor 1 (INV) discharge temp. trouble

P04

F12

F16

F08

F07

High-pressure switch is activated.

Outdoor air temp. sensor (T0)

Heat exchanger 1 liquid temp. sensor (C1)

Compressor intake temp. sensor (suction temp)

High-pressure sensor

DCCT, ACCT overcurrent (80 Hz or more)

Start failure caused by compressor wire missing phase, DCCT
failure, or similar problem (INV compressor start failure).

Outdoor unit

Ceiling panel connection failure

Operating and timer
lamps blinking
alternately

Timer and heat
ready lamp blinking
alternately

Operating and heat
ready lamp blinking
alternately

Timer lamp blinking

Operating and timer
lamp blinking
simultaneously