49
5106
Outer temperature thermistor (TH6)
abnormality
Display
Meaning and detecting method
Causes
Check points
1) Connector (TH6) contact failure
Check whether the connector (TH6)
in the multi controller board is
connected or not.
When controller detects short/open in
thermistor during the operation, the
outdoor unit stops once and restarts
operation in 3minutes. When the detected
temperature is normal at just before of
restarting, the outdoor unit restarts.
2) Thermistor wiring disconnection or
half disconnection
Check whether the thermistor wiring
is disconnected or not.
When controller detects short/open in
thermistor at just before of restarting, the
unit stops abnormally. In this time, <5106>
is displayed.
3) Thermistor failure
Check the resistance of thermistor;
When the resistance is not below
value, replace the thermistor.
While the compressor is protected not to
restart in 3minutes, the unit is delayed
abnormal stop. Then, the outdoor unit
address No. and check delay code <1221>
blinks alternately on the 4 digit digital
display.
SW1 setting
For 10 minutes after starting compressor,
for defrosting or for 3minutes after recover
of defrosting, above-mentioned short/open
are not detected.
Short: 88
;
or more (0.4k
'
)
Open: -39
;
or less (115k
'
)
0
;
···15k
'
10
;
···9.6k
'
20
;
···6.3k
'
30
;
···4.3k
'
40
;
···3.0k
'
4) Multi controller board input circuit
failure
Set the SW1 to
When the temperature in multi
controller board is not an actual
temperature, replace the multi
controller board.
-99.9: Open
999.9: Short
5110
PUMY-P125VMA:
Radiator panel temperature thermistor
(THHS-A, THHS-B) abnormality
PUMY-P125YMA, PUMY-P125YMA
1
:
IPM radiator panel temperature thermistor
(THHS) abnormality
When controller detects short/open in
thermistor during the operation, the
outdoor unit stops once and restarts
operation in 3minutes. When the detected
temperature is normal at just before of
restarting, the outdoor unit restarts.
1) Connector (THHS) contact failure
Check whether the connector (THHS)
in the multi controller board is
connected or not.
When controller detects short/open in
thermistor at just before of restarting, the
unit stops abnormally. In this time, <5110>
is displayed.
2) Thermistor wiring disconnection or
half disconnection
Check whether the thermistor wiring
is disconnected or not.
While the compressor is protected not to
restart in 3minutes, the unit is delayed
abnormal stop. Then, the outdoor unit
address No. and check delay code <1214>
blinks alternately on the 4 digit digital
display.
3) Thermistor failure
Check the resistance of thermistor;
When the resistance is not below
value, replace the thermistor.
SW1 setting
For 10 minutes after starting compressor,
for defrosting or for 3minutes after recover
of defrosting, above-mentioned short/open
are not detected.
(PUMY-P125YMA, PUMY-P125YMA
1
)
PUMY-P125VMA:
Short:102
;
or more (2.9k
'
)
Open: -27
;
or less (950k
'
)
PUMY-P125YMA, PUMY-P125YMA
1
:
Short:132
;
or more (1.2k
'
)
Open: -30
;
or less (1200k
'
)
0
;
···180k
'
10
;
···105k
'
20
;
···63k
'
30
;
···39k
'
40
;
···25k
'
4) Multi controller board input circuit
failure
Set the SW1 to
When the temperature in multi
controller board is not an actual
temperature, replace the multi
controller board.
-99.9: Open
999.9: Short
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
on
2
1
3 4 5 6 7 8
on
2
1
3 4 5 6 7 8
on
2
1
3 4 5 6 7 8
on
2
1
3 4 5 6 7 8
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