Judgment By Flashing Led Of Indoor Unit - Toshiba RAS-M10NKV-E Service Manual

8-3. Judgment by Flashing LED of Indoor Unit

While the indoor unit monitors the operation status of the air conditioner, if the protective circuit operates, the
contents of self-diagnosis are displayed with block on the indoor unit indication section.
A OPERATION lamp is blinking. (1Hz)
B OPERATION lamp is blinking. (5Hz)
C OPERATION lamp is blinking. (5Hz)
D OPERATION lamp is blinking. (5Hz)
E OPERATION lamp is blinking. (5Hz)
F OPERATION and TIMER lamps are blinking.
(5Hz)
G OPERATION, TIMER and FAN ONLY lamps
are blinking.
H OPERATION, TIMER and FAN ONLY lamps
are blinking.
NOTES:
(1) The contents of items B and C and a part of item E are displayed when air conditioner operates.
(2) When item B and C, and item B and a part of item E occur concurrently, priority is given to the block of item B.
(3) The check codes can be confirmed on the remote controller for servicing.
(4) When connecting the changing kit, first-push priority control is executed. The secondary operation lamp
continues flashing. For details, refer to the section 10. Changing Kit.
Table 8-3-1
Lamps
– 34 –
Self-diagnosis
Power failure (when the power supply is turning on)
Thermo sensor (TA) short or break
Heat exchanger sensor (TC) short or break
Indoor fan motor lock or failure
Indoor P.C. board failure
Wrong wiring of connecting cable
• Gas shortage or other refrigerant cycle trouble
• Heat exchanger sensor open, break or short
• Overload relay or thermostat trouble of compressor
Cycle failure
FILE NO. SVM-05019