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2
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Components
To perform an electrical check of the fin thermistor
Service manual
118
Does the measured resistance of the
thermistor match with the
temperature determined resistance?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Locate the thermistor on the appropriate PCB.
2 Measure the temperature using a contact thermometer.
INFORMATION
The thermistors may vary according to the specific unit.
3 Determine the thermistor resistance that matches the measured
temperature.
Type 1 thermistor
T °C
kΩ
T °C
–20
197.81
10
–19
186.53
11
–18
175.97
12
–17
166.07
13
–16
156.80
14
–15
148.10
15
–14
139.94
16
–13
132.28
17
–12
125.09
18
–11
118.34
19
–10
111.99
20
Action
Thermistor is OK. Return to the
troubleshooting of the specific error
and continue with the next procedure.
Replace the specific PCB, see
procedures" [
"2.10 Plate
kΩ
T °C
kΩ
39.96
40
10.63
38.08
41
10.21
36.30
42
9.81
34.62
43
9.42
33.02
44
9.06
31.50
45
8.71
30.06
46
8.37
28.70
47
8.05
27.41
48
7.75
26.18
49
7.46
25.01
50
7.18
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
"Repair
4
120].
4
work" [
92].
T °C
kΩ
70
3.44
71
3.32
72
3.21
73
3.11
74
3.01
75
2.91
76
2.82
77
2.72
78
2.64
79
2.55
80
2.47
Split Comfora R32
ESIE18-01C – 2020.07
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Troubleshooting
