Troubleshooting for RA Indoor Unit
SiEBE18-526
266
Troubleshooting
4.6.3 Thermistor Resistance Check
Check No.06
Remove the connectors of the thermistors on the PCB, and measure the resistance of each
thermistor using tester.
The relationship between normal temperature and resistance is shown in the graph and the
table below.
Thermistor R25°C=20k
Ω
B=3950
Temperature (°C)
-20
211.0 (k
Ω
)
-15
150
-10
116.5
-5
88
0
67.2
5
51.9
10
40
15
31.8
20
25
25
20
30
16
35
13
40
10.6
45
8.7
50
7.2
Tester
150
100
50
-15
15
30
45
(°C)
0
(R25 = 20k
Ω
, B= 3950)
(k
Ω
)
Resistance range
(R1437)
Summary of Contents for Super Multi Plus D-Series
Page 1: ...SiEBE18 526 D Series Service Manual Applied Models zSuper Multi Plus Heat Pump...
Page 12: ...SiEBE18 526 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 63: ...Refrigerant Flow for Each Operation Mode SiEBE18 526 52 Refrigerant Circuit...
Page 249: ...Instruction SiEBE18 526 238 System Configuration...
