26
Note 1)
!
Neither indoor unit nor outdoor unit runs.
Check the following points first. (There are following case in normal operation)
a. Is the timer mode set the "timer ON".
b. Is the timer mode set the "timer-OFF" and the time had passed?
@
Neither outdoor fan nor compressor runs while indoor fan runs.
Check following points first. (There are following cases in normal operation)
a. Is the temperature set point suitable?
b. Has the 3 minutes time guard for compressor operated?
1) Error Code 1
!
Check the connector of room air thermistor. (or connecting wire)
@
Check soldering of connecting on control P.C.B. (Error of soldering or short)
#
Check the resistance of room air thermistor.
2) Error Code 2
!
Check the connector of indoor coil thermistor. (or connecting wire)
@
Check soldering of connecting on control P.C.B.
#
Check the resistance of indoor coil thermistor.
3) Error Code 3
!
When the compressor do not run.
i) Check the voltage between
and
of terminal block.
(Indoor Unit, Outdoor Unit)
ii) Check connecting wire of indoor unit and outdoor unit.
iii) Check relay KI, IC-U4 on power P.C.B
@
Check fixing of indoor coil thermistor.
#
Check the GAS LEAKAGE of the pipe.
4) Error Code 4.
!
Check the circuit of Motor Control.
@
Check wiring of Motor
#
Check the Motor
i) Sensor of Motor
ii) Motor Winding.
Y
L
Self-Diagnostic Function
