Samsung Electronics
12-3
Error Mode
Indoor temperature sensor error (OPEN/SHORT)
Outdoor temperature sensor error (OPEN/SHORT)
Display
Check Method
Temperature sensor disconnection or dislocation
Cause
Connection electrodes contact, sensor disconnection or electric leakage
Sensor SPEC.
103 AT : 25˚C 10KΩ
Outdoor temperature
thermistor disorder(replacement)
No
Yes
Yes
E121 (E221) code appears when unit operation
starts or while it is in operation.
Is temperature sensor connector (CN41)
of PCB dislocated from PCB?
Yes
Detach the temperature sensor connector
from PCB, to measure resistance between the
two electrodes.
Restart the unit after having
replaced PCB.
Is measured resistance
a lot different from the value
specified by the table besides?
Restart operation after link the
connector to PCB.
No
Temperature
(˚C)
Resistance
(kΩ)
70
2.2
60
3.0
50
4.2
40
5.8
30
8.3
20
12.1
10
18.0
0
27.3
-10
43.0
12-4-1 Temperature Sensor Error(CN41)
12-4 Fault Diagnosis by Symptom
27723A(1)_RHF-025EB_1.indd 3
2007-05-09 ソタネト 4:24:13
Содержание ERV RHF025EE
Страница 54: ...MEMO Samsung Electronics 5 6 27723A 1 _RHF 025EB_1 indd 41 2007 05 09 ソタネト 4 23 34 ...
Страница 99: ...MEMO Samsung Electronics 9 5 27723A 1 _RHF 025EB_1 indd 89 2007 05 09 ソタネト 4 24 08 ...
Страница 123: ...MEMO Samsung Electronics 12 17 27723A 1 _RHF 025EB_1 indd 17 2007 05 09 ソタネト 4 24 17 ...