Useful Functions - Toshiba RAS-M14GAV-E Installation Manual

01_OutdoorInstallation_EN.fm Page 12 Wednesday, March 29, 2006 10:27 AM

7 USEFUL FUNCTIONS

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.
Normal running
IGBT short circuit, Compressor motor rear short
Trouble on position detecting circuit
Trouble on current detecting circuit
CONDENSOR PIPE TEMPERATURE SENSOR (TE) fault
SUCTION PIPE TEMPERATURE SENSOR (TS) fault
DISCHARGE PIPE TEMPERATURE SENSOR (TD) fault
Trouble on outdoor fan
OUTDOOR TEMPERATURE SENSOR (TO) fault
Trouble on compressor system
GAS SIDE PIPE TEMPERATURE SENSOR a (TGa) fault
GAS SIDE PIPE TEMPERATURE SENSOR b (TGb) fault
TGa, TGb sensor out of place, PMV fault
Communication trouble between MCU
Compressor lock
Trouble on discharge temperature, 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.
EN
Contents
12
LED indication
Indoor alarm
code
D09 D10 D11
None
14
16
17
18
18
19
1A
1B
1C
1C
1C
1C
1C
1D
1E
1F
: LED ON,
D09 D10 D11 D12 D13
LED (Red)
D12 D13
: LED OFF