Mitsubishi Electric EHSE-YM9EC Service Manual page 54

Part Name
Thermistors
Flow sensor
Black
White
Flow signal V
Blue
5 V DC
Brown
OCH590B
Disconnect the connector then measure the resistance with a tester.
(At ambient temperatures of 10 to 30°C.)
1
4
CN1A
Check Points
Thermistor Normal
TH1
TH2
THW1
THW2
THW5 4.3–9.5 kΩ
THW6
THW7
THW8
THW9
THWB1
40–100 kΩ
THWB2
Flow signal
2.5
2.3
2
1.5
1
0.5
0
0 10 20 30 40
Flow[l/min]
54
Abnormal
Open or short
Open or short
50 61.5 70