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TROUBLESHOOTING
(2) Self-Checking Procedures in Check Mode
* for RPC (Before Alteration), RPF(I) and RPC (8, 10HP)
* for RPK
State of Mode Confirmation Method
(A) Initialize Exp. Valve  Exp. Valve fully open => fully close
and Auto Louver  Auto Louver is horizontally stopped.
(B) Analog Test  If each thermistor for intake air, discharge air and  If FAN operation is
 freeze protection is normal, proceed to the next step.  available, it is normal.
(C) Each Relay Test  Check ON/OFF sound
 of relays and LED
 lamp.
 Repeatedly
 Perform
 Termination  Turn OFF and reset all dip switches as they were.
Check Item
State of Mode Confirmation Method
(A) Initialize Exp. Valve  Exp. Valve fully open => fully close
and Auto Louver  Auto Louver is horizontally stopped.
(B) Analog Test  If each thermistor for intake air, discharge air and
 freeze protection is normal, proceed to the next step.
(C) Each Relay Test  Check ON/OFF sound
 of relays.
 Repeatedly
 Perform
 Termination  Turn OFF and reset all dip switches as they were.
Check Item
52H1, 2, 3
Fan (Low)
Wireless Receiver
Part (Red)
Wireless Receiver
Part (Green)
Wireless Receiver
Part (Yellow)
YFAN
YH2
Y52H1, 2, 3
FAN
(CN21)
RUN (CN6)
ALARM (CN7)
COOL (CN5-3#)
COOL Thermo-ON
(CN5-2#)
HEAT (CN8-2#)
HEAT Thermo-ON
(CN8-3#)
Hi Me
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(sec)