Troubleshooting
70
4-4-2
: Error due to abnormal data of Wired remote controller thermistor value
• Wired remocon room thermistor has a defective OPEN/SHORT
• Refer to how to determine below
Wired remocon display
Criteria
Cause of problem
Outdoor unit display
x x x
(
x x x
:
The address of the error occurred indoor unit)
No
The thermistor needs to be replaced.
No
Re-start after put the connetor in the PBA.
Yes
Does wired remocon
room thermistor connector come out
of the PBA?
Is the resistance value
Deviated from the temp. table,
significantly?
Yes
1. How to check
After putting out the thermistor
from the PBA Measure its resistance
value B/W two terminal.
Re-start after replacing PBA.
Temperature
(°C)
Resistance
(KΩ)
70
60
50
40
30
21
10
0
-10
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
Ex) In case of 25°C – its resistance : around 10KΩ
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