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4-4-4 Indoor unit EVAP IN sensor Error (Open/Short)
1. How to check
Is indoor EVAP IN sensor
connector separated from the PCB?
At that time,
is the resistance value significantly
deviated from the temp. table?
After separating indoor EVAP IN sensor
connector from the PCB, measure the resistance
values between both terminals
Re-start after connecting
the connector to the PCB.
As it is due to an indoor EVAP IN sensor
defect, replace it.
Yes
No
No
Ex) Room temp. 26°C – Resistance 10.93KΩ
Yes
Re-start after replacing PCB.
Yes
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
Outdoor unit display
x x x
(
x x x
:
The address of the error occurred indoor unit)
Indoor unit display
Operation Timer
Criteria
• Refer to how to determine below
Cause of problem
• The EVAP IN sensor of No. XXX indoor unit has defective OPEN/SHORT
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