Toshiba RAS-B10GKVP-E Service Manual page 89

11-7. Trouble Diagnosis by Outdoor LED
For the outdoor unit, the self-diagnosis is possible by
five LEDs (Red).
• LEDs (Red) (D09 to D13) are provided on the sub-
control board under surface of the inverter, and as
shown below, they are checked from the wiring
port when removing the wiring cover.
1. If a trouble occurs, LED (Red) goes on according
to the trouble as described in the table below.
2. When two or more troubles occur, LEDs go on
cyclically.
3. Usually, LEDs (Red) go off.
Contents
Normal running
IGBT short circuit, Compressor motor rear short
Trouble on position detecting circuit
Trouble on current detecting circuit
Condensor pipe temp. sensor (TE) fault
Suction pipe temp. sensor (TS) fault
Discharge pipe temp. sensor (TD) fault
Trouble on outdoor fan
Outdoor temp. sensor (TO) fault
Trouble on compressor system
Gas side pipe temp. sensor a (TGa) fault
Gas side pipe temp. sensor b (TGb) fault
TGa, TGb sensor out of place, P.M.V. fault
Communication trouble between M.C.U.
Compressor lock
Trouble on discharge temp. Gas leakage
Compressor break down
D09 D10 D11 D12 D13
LED (Red)
Indoor
alarm code
D09
l
None
l
14
¤
16
l
17
¤
18
l
18
l
19
¤
1A
l
1B
¤
1C
¤
1C
¤
1C
¤
1C
¤
1C
¤
1D
l
1E
¤
1F
– 89 –
Fig. 11-7-1
LED indication
D10 D11 D12
l l l
¤
l l
¤
l l
¤
l l
¤ ¤
l
¤ ¤
l
¤ ¤
l
¤ ¤
l
¤
l l
¤
l l
¤ ¤ ¤
l l l
¤ ¤
l
¤ ¤
l
¤
l l
¤ ¤
l
¤ ¤
l
¤
l
: LED ON,
D13
l
l
l
l
l
l
l
l
l
l
l
¤
¤
¤
l
l
l
: LED OFF