ā 42 ā
RAS-10SKH-E-1
x
2
/
RAS-M18SAH-E
RAS-10SKH-E-1
x
2
/
RAS-3M31SAH-E-1 (Lower Unit)
RAS-10SKH-E-1
x
4
/
RAS-4M36SAH-E
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 AC220/230/240V
supplied between terminal block
1 - 2 , 3 - 2
*
1, 4 - 2 ?
*
1 Only Heating mode
Is cable connection
between indoor and outdoor
units correct?
Replace the
P.C. board.
See "Power can not be turned on".
Relays (RY01, RY02, RY03, RY04)
or IC31 or IC30 is failure.
Correct cabling between
indoor and outdoor units.
NO
NO
NO
NO
YES
YES
YES
YES
See "Power can not be turned on".
Check items as following procedure
in 9-3-4, 9-3-5, 9-3-6.
Is outdoor heat exchanger
sensor (TE) normal?
NO
Replace sensor
MCC-738 MAIN P.C. board
CN09-RY01 3 , and/or,
CN010-RY02 3
220/230/240 VAC?
NO
MCC-738 is defective.
YES
YES
To Next Page
Loading...
