Toshiba RAS-B10GKVP-E Service Manual page 75

10-9. Useful Functions
10-9-1. Self-Diagnosis by LED Indication
• For this outdoor unit, by referring to the 5 LED (Red) indicator lights, self-diagnosis is possible.
• LEDS (Red, D09 to D13) are located on the sub-control board underneath the inverter.
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
• These LEDs do not normally light.
1. If trouble occurs, LED (Red) goes on according to
the contents of trouble as shown in the table above.
2. When two or more troubles occur, LEDs go on
cyclically (alternately).
3. When the trouble is eliminated, LEDs (Red) go off.
This product is compliant with Directive 2002/96/EC, and cannot be disposed as unsorted
municipal waste.
This product must be returned to the appropriate collection facility, as specified by your mu-
nicipality.
Indoor alarm code
D09
None
14
16
17
18
18
19
1A
1B
1C
1C
1C
1C
1C
1D
1E
1F
D09 D10 D11 D12 D13
LED (Red)
– 75 –
LED indication
D10 D11 D12
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: LED ON,
Fig. 10-9-1
D13
l
l
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: LED OFF