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MAINTENANCE AND SERVICE
6
16
4. Turn OFF No. 2 pin of 8-pin DSW (201), and turn ON only No. 3 pin.
1 2 3 4 5 6 7 8
ON
8 Pins DSW (S201)
*
The total number of pins that have been set ON from No. 1 to NO. 5 out of 8 Pins DSW [S202] will appear on
the right side of display, and "3" on the left side of display.
5. Turn OFF No. 2 pin of 8-pin DSW (201), and turn ON only No. 3 pin.
1 2 3 4 5 6 7 8
ON
8 Pins DSW (S201)
6.2. Troubleshooting
The following table indicates possible trouble-shooting upon the abnormal operation in the
unit.
Ensure that power supply is switched OFF before starting the check.
No.
Phenomenon
Check if power cable is connected.
Check if power is supplied.
Check if Power Supply Display
(PWRs ON).
HARC-BX E does
not activate even
Check if power supply terminal
though power
1
screws are loosed.
supply is ON.
(No indication on
the 7-Segment).
Check if LED (PWR or transmission
display is lit).
Check if LED (LON or transmission
display is lit).
Check if LED (LON or transmission
display is blinking on the regular
intervals (1 to 2sec)).
Items to be checked
7-Segment Display
*
7-Segment Display
The above indication will be
repeated
Action
Connect power cable.
Power source voltage should be
measured. If the voltage measure shows
out of normal range of
100~240 ± 10%[V], wire systems and
wiring procedures should be inspected
and examined.
Lighting OFF indicates that there is a
possibility of the failure of internal power
source. Contact your nearest service
centre.
Ensure to tighten firmly.
Check the transmission circuit of air
conditioners by the self-inspection
function. And check the circuit if
transmission circuit in packaged air
conditioners is operating normally.
Check the upper transmission circuit by
self-inspection function. And check the
circuit if upper transmission circuit is
operating normally.
Blink indicates that there is a possibility
of the failure of internal power source.
Contact to your nearest services
centre.
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