SiBE121135_A Troubleshooting for SA Indoor Unit
Service Diagnosis 190
Note: Check the resistance between each pin twice with the fan motor connector disconnected.
Exchange the test leads (red / black) of the tester at the second check.
Criterion value: Higher than 1Ω both times.
1st check 2nd check
Tester
Resistance
Tester
Resistance
Red Black Red Black
FG GND Ω GND FG Ω
Vsp GND Ω GND Vsp Ω
Vcc GND Ω GND Vcc Ω
Vdc GND Ω GND Vdc Ω
Please fill in the blanks with
the resistance.
FCQG series FBQ35/50C8VEB
(R19165)
1
2
3
Blue
Brown5
6 Orange
7 White
Vdc
X20A
----
----
GND
Vcc
Vsp
FG
Red
4
(R19166)
X8A
1 White
2 Orange
3 Brown
4 Blue
5
6
7 Red
FG
Vsp
Vcc
GND
----
----
Vdc
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