Check code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detected

 

 

 

 

 

 

 

 

Main

Outdoor 7-segment display

AI-NET

Check code name

Status

Error detection condition

 

 

Check item (position)

 

position

 

 

 

remote

 

 

central control

 

 

 

 

 

 

 

 

controller

Check code

Sub-code

remote controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E12

E12

01: Indoor/outdoor

42

I/F

Automatic address start

All stop

• When indoor automatic address started, other

• Setup the address again after disconnecting communication

 

 

 

communication

 

 

error

 

refrigerant circuit system was setting automatic

 

connection with other refrigerant circuit system.

 

 

 

02: Between outdoors

 

 

 

 

address.

 

 

 

 

 

 

communication

 

 

 

 

• When outdoor automatic address started, indoor

 

 

 

 

 

 

 

 

 

 

 

automatic address was executed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E15

E15

42

I/F

No corresponding indoor

All stop

Indoor unit is not found when indoor automatic address

• Check the communication line connection between indoor and

 

 

 

 

 

 

unit during automatic

 

start was set up.

 

outdoor.

 

 

 

 

 

 

address

 

 

 

• Check the electric power line error in indoor.

 

 

 

 

 

 

 

 

 

 

Check the noise of surrounding devices.

 

 

 

 

 

 

 

 

 

 

Power failure

 

 

 

 

 

 

 

 

 

 

• Check indoor P.C. board error.

 

 

 

 

 

 

 

 

 

 

 

 

 

E16

E16

00: Capacity over

89

I/F

No. of connected indoor

All stop

• Total capacity of indoor units exceeded 135% of total

• Check the connection capacity of indoor unit.

 

 

 

01 to: No. of connected

 

 

units / Capacity over

 

outdoor capacity.

• Check the HP capacity of indoor unit.

 

 

 

units

 

 

 

 

• No. of connected indoor units are more than 48 units.

• Check the indoor/outdoor capacity setup

 

 

 

 

 

 

 

 

[Note]

• Check the No. of connected indoor units.

 

 

 

 

 

 

 

 

If this code appears after backup setup of outdoor unit

Check the outdoor I/F P.C. board error

 

 

 

 

 

 

 

 

trouble, set up “No. capacity-over detection”.

 

 

 

 

 

 

 

 

 

 

 

Setup method of “No. capacity-over detection”

 

 

 

 

 

 

 

 

 

 

 

Turn on SW09/Bit 2 on I/F P.C. board of outdoor header

 

 

 

 

 

 

 

 

 

 

 

unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

125

E18

97, 99

Indoor

Communication error

Corresponding

Regular communication between indoor header and

• Check cable of the remote controller.

 

 

 

 

unit

between indoor header

unit only stops.

follower units

Check power cabling of indoor.

 

 

 

 

 

and follower units

 

 

 

• Check P.C. board of indoor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E19

E19

00: No header unit

96

I/F

Outdoor unit quantity

All stop

• There are multiple outdoor units in 1 line.

The outdoor unit connected with communication cable between

 

 

 

02: Two or more header

 

 

error

 

• There is none of outdoor unit in 1 line.

indoor and outdoor (U1.U2) is the outdoor unit.

 

 

 

units

 

 

 

 

 

 

• Check connection of communication line between indoor and

 

 

 

 

 

 

 

 

 

 

 

outdoor.

 

 

 

 

 

 

 

 

 

 

• Check outdoor P.C. board(I/F) error.

 

 

 

 

 

 

 

 

 

 

 

 

 

E20

E20

01: Connection of

42

I/F

Other line unit

All stop

Unit of other line was connected when indoor automatic

Separate the cable between lines according to automatic

 

 

 

outdoor of other line

 

 

connected during

 

address started.

address setup method in “Address setup”.

 

 

 

02: Connection of indoor

 

 

automatic address

 

 

 

 

 

 

 

 

 

of other line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E23

E23

15

I/F

Communication sending

All stop

Transmission of other outdoor unit was unavailable for

In this model, only one outdoor unit is provided to one refrigerant

 

 

 

 

 

 

error between outdoor

 

30 seconds or more.

line. Be sure to check there is no communication connection

 

 

 

 

 

 

units

 

 

 

with outdoor unit in the other refrigerant line.

 

 

 

 

 

 

 

 

 

 

 

 

 

E25

E25

15

I/F

Duplicated outdoor

All stop

Outdoor addresses manually set up are duplicated.

Note)

 

 

 

 

 

 

follower address setup

 

 

 

Do not set up the outdoor address manually.

 

 

 

 

 

 

 

 

 

 

 

 

 

E26

E26

No. of normally received

15

I/F

Decreased number of

All stop

The signal was not returned for constant from the

In this model, only one outdoor unit is provided to one refrigerant

 

 

 

outdoor units

 

 

connected outdoor units

 

outdoor unit which was receiving signal.

line. Be sure to check there is no communication connection

 

 

 

 

 

 

 

 

 

 

with outdoor unit in the other refrigerant line.

 

 

 

 

 

 

 

 

 

 

 

 

 

E28

E28

No. of detected outdoor

d2

I/F

Outdoor follower unit

All stop

Outdoor header unit received error code from outdoor

• Check the check code of outdoor follower unit.

 

 

 

units

 

 

error

 

follower unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Convenient functions

 

 

 

 

 

 

 

 

When pushing SW04 for 1 second or more under condition that [E28] is displayed on 7-segment display of

 

 

 

 

 

 

 

 

outdoor header unit, the fan of outdoor unit which stopped abnormally starts rotating.

 

 

 

 

 

 

 

 

If pushing SW04 and SW05 simultaneously, the fan of normal outdoor unit operates.

 

 

 

 

 

 

 

 

When pushing SW05 singly, the operation of fan is cleared.

 

 

 

 

 

 

 

 

 

 

 

 

 

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Toshiba MMU-AP0091H 125, Convenient functions, Error detection condition Check item position, Check code Sub-code