– 36 –
Table 4-1-1 Simple check points for diagnosing faults
Diagnosis result
Check to see if the OPERATION indicator goes on and off when the main switch
or breaker is turned on. (Check the primary and secondary voltage of transformer.)
Check for power supply voltage between
and
. (Refer to the name plate.)
(Check the primary and secondary voltage of transformer.)
Check for fluctuate voltage between
–
. (DC 15 ~ 60V)
Check to see if the fuse blows out.
(Checkthe R04 of the varistor.)
Check the voltage at the No.4 pin on CN13 connector of the infrared receiver.
(Check the transformer and the power supply circuit of the rated voltage.)
Check for voltage at the while lead of louver motor.
(Check the transformer and the power supply circuit of the rated voltage.)
Check the voltage at the No.1 pin on CN10 connector.
(Check the DB01, R05 and C03.)
Refer to the service data for the detailed failure diagnosis.
Check items
OPERATION
INDICATOR
TERMINAL
BLOCK
FUSE
6.3A
DC 5V
DC 12V
DC 35V
1
2
3
4
5
6
Color
Identification
BRW : BROWN
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN : GREEN &
&YEL YELLOW
(DC310 ~ 340V)
GRN : GREEN
4. WIRING DIAGRAM
4-1. Indoor Unit
RAS-M10UKV-E3, RAS-M13UKV-E3, RAS-M16UKV-E3
RAS-M10UKCV-E3, RAS-M13UKCV-E3, RAS-M16UKCV-E3
or MCC-5014
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