INDOOR ELECTRIC CIRCUIT
Drain Pump Assy
VENT
INDOOR
MOTOR
DRAIN
PUMP
YL
BR
OR
BR
BK
BL
RD
BK
BRBL
BL
BL
GN/YL
GN/YL
COMP
4 WAY
FUSE
250V 8A
TEMP.
THERMISTOR
PIPE
THERMISTOR
FLOAT S/W
REMOTE
CONTROL
ZONE
CONTROL
TELECONTROL/
CENTRAL CONTROL
A/CL
UNIT
OPTION
TERMINAL
BLOCK
1
(
L
)
2
(
N
)
4 3
5
TO OUTDOOR UNIT
TRIAC
VENTILATOR
T/B
4
Wiring Diagram
Test operation
• Before test operation, be sure all information is understood completely, and follow
the guideline of manual.
• Connect the power and turn on cooling mode.
• After compressor operating, it starts and compressor off, it stops 6 minutes later.
Troubleshowting
PROBLEM CAUSE REMEDY
No power supply
Pump does not work.
Pump noisy
Float switch doesn't
operate.
Pumping air
Vibrating against
surfaces.
Check electrical connection and voltage of
the power supply.
Check float switch.
Check pump connection for water
contamination.
Check the assembly state of drain pump to
the unit.
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