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3. SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD
Setting dip switches SW2 and SW3 on the outdoor controller board enables LED to show the output state and check code.
Output state is shown by LED lighting, and check code by blinking.
SW1 : Turning SW1 ON clears the check code. If SW1 is turned ON while the check code is blinking , the indication
changes to output state indication.
NOTE : SW1 is usually available independent of SW3 setting. As an exception, when the check code shows a
reversed phase or an open phase during the power-on-reset state, SW1 is not available.
SW2 : SW2 is turned ON by pressing, and OFF by releasing.
When SW3-1 and SW3-2 are OFF, pressing SW2 changes indication between output state and check code
alternately.
When SW2 is turned On with SW3-1 OFF and SW3-2 ON, the compulsory defrosting starts.
SW3 : Output state indication items depend on the combination of SW3-1 ON/OFF and SW3-2 ON/OFF.
Changed alternately by pressing SW2.
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Regarding PUH-6YKSA
2
.UK, even though the LD7 is blinking during the cooler operation, the bypass valve
cannot open.
Check code
Output state
Outdoor coil
temperature
(bit)
Fan Output
step
(bit)
Total time of
compressor
operation(Hr)
SW3-1
OFF
OFF
OFF
ON
ON
SW3-2
OFF
OFF
ON
OFF
ON
LED
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LD8
Blinking
Reversed phase
Open phase
63H2 function
51C function
26C function
Overheat protection
Outdoor coil thermistor is
abnormal
Input circuit on controller
board is abnormal
Compressor ON command
from indoor controller
Heating operation command
from indoor controller
During 63H1 function
Compressor ON
Outdoor fan ON
4-way valve ON
Bypass valve ON
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Crankcase heater ON
1
2
4
8
16
32
64
128
1
2
4
8
16
32
64
128
256
512
1024
2048
4096
8192
16384
32768
Lighting
OC211-A--2.qxp 04.9.28 4:41 PM Page 59
