135

 

 

 

Check code

 

 

 

 

 

 

 

 

 

 

 

 

Detected

Check code name

Status

 

Error detection condition

Check item (position)

Main

Outdoor 7-segment display

AI-NET

 

position

 

remote

 

 

 

central control

 

 

 

 

 

controller

Check code

 

Sub-code

remote controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P22

P22

0:

IGBT shortage

1A

FAN-IPDU

Outdoor fan IPDU

All stop

 

(Sub-code: 0)

• Check fan motor. (Interphase short-circuit)

 

 

1:

Position detection

 

 

error

 

 

Short-circuit current was detected at start

• Check fan IPDU error.

 

 

 

circuit error

 

 

 

 

 

time.

 

 

 

3:

Motor lock error

 

 

 

 

 

Short-circuit current was detected when

 

 

 

4:

Motor current error

 

 

 

 

 

checking IGBT short-circuit before start time.

 

 

 

 

detection

 

 

 

 

 

 

 

 

 

 

 

 

 

All stop

 

(Sub-code: 1)

• Check fan IPDU error.

 

 

C:

TH sensor temp.

 

 

 

 

 

 

 

error

 

 

 

 

 

• The standard value of detection circuit of fan

 

 

 

D:

TH sensor error

 

 

 

 

 

IPDU current fluctuated at start time.

 

 

 

E:

Vdc error

 

 

 

 

 

 

 

 

 

 

 

 

All stop

 

(Sub-code: 3)

• Check fan motor. (Lock, phase missing)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Abnormal current was detected within 30

• Check cause of abnormal overload at start time.

 

 

 

 

 

 

 

 

 

seconds after start time.

• Check connection of connector to fan motor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All stop

 

(Sub-code: 4)

• Check power supply voltage.

 

 

 

 

 

 

 

 

 

Short-circuit current was detected when 2

• Check fan IPDU error.

 

 

 

 

 

 

 

 

 

seconds or more passed after start time.

 

 

 

 

 

 

 

 

 

 

Over-current was detected when 30 seconds

 

 

 

 

 

 

 

 

 

 

or more passed after start time.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All stop

 

(Sub-code: C)

• Check outdoor fan system.

 

 

 

 

 

 

 

 

 

• Heat sink sensor (TH) of fan IPDU detected

• Check fan IPDU error.

 

 

 

 

 

 

 

 

 

95°C error.

• Check fixation between fan IPDU and heat sink.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All stop

 

(Sub-code: D)

• Check fan IPDU error.

 

 

 

 

 

 

 

 

 

• Heat sink sensor (TH) of fan IPDU detected

 

 

 

 

 

 

 

 

 

 

short-circuiting or open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All stop

 

(Sub-code: E)

• Check input power supply voltage of the fan IPDU.

 

 

 

 

 

 

 

 

 

• Input power supply voltage of the fan IPDU

• Check power supply P.C. board error of the fan IPDU.

 

 

 

 

 

 

 

 

 

over the setup value was detected.

• Check error of external electrolytic condenser.

 

 

 

 

 

 

 

 

 

• Input power supply terminal of the fan IPDU

 

 

 

 

 

 

 

 

 

 

was unconnected.

 

 

 

 

 

 

 

 

 

 

• Power supply P.C. board error of the fan IPDU

 

 

 

 

 

 

 

 

 

 

 

P26

P26

01: Compressor 1 side

14

IPDU

G-Tr short-circuit

All stop

 

Instantaneous over-current was detected when

• Check connector connection and wiring on IPDU P.C. board.

 

 

02: Compressor 2 side

 

 

protection error

 

 

compressor started.

• Check compressor error and defect of compressor coil.

 

 

 

 

 

 

 

 

 

 

• Check outdoor P.C. board (IPDU) error.

 

 

 

 

 

 

 

 

 

 

P29

P29

01: Compressor 1 side

16

IPDU

Compressor

All stop

 

Position detected was not normal.

• Check connector connection and wiring.

 

 

02: Compressor 2 side

 

 

position detection

 

 

 

• Check compressor error and defect of compressor coil.

 

 

 

 

 

 

circuit error

 

 

 

• Check P.C. board (IPDU) error.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P31

 

47

Indoor

Other indoor error

Corresponding

 

E07/L07/L03/L08 was detected when other

• Check indoor P.C. board.

 

 

 

 

 

 

(Group follower unit

unit only stops.

indoor unit in the group was defective.

 

 

 

 

 

 

 

error)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 135
Image 135
Toshiba MMU-AP0091H service manual 135, Sub-code C, Sub-code D, Sub-code E, Detected Check code name Status