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9-3-6. Only 4-Way Valve does not Operate (During Heating Operation)
Shut off the power supply
from AC outlet once and
turn it on after 5 seconds.
Does the OPERATION lamp blink?
Does the power turn on by
pushing the [START/STOP] button
of the remote control?
Is cable connection between indoor
and outdoor units correct?
Replace the
P.C. board.
See "Power can not be turned on".
NO
NO
NO
NO
YES
YES
YES
YES
4-way valve is defective.
Cables between indoor and
outdoor units are defective.
Correct cabling between indoor
and outdoor units.
NO
NO
YES
YES
Is the wiring of solenoid coil
for 4-way valve normal?
Is the voltage across the terminal
( 2 - 3 ) 220/230/240 VAC?
See "Power can not be turned on".
Solenoid coil is defective.
Is the voltage across the terminal
( 2 - 3 ) 220/230/240 VAC?
Relays (RY02, RY04)
or IC31 or IC30 is failure.
Summary of Contents for SRAS-13SKH-ES
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