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Troubleshooting for RA Indoor Unit
SiEN18-622
332
Troubleshooting
4.6.4 Hall IC Check
Check No.16
1. Check the connector connection.
2. With the power ON, operation OFF, and the connector connected, check the following.
∗
Output voltage of about 5 V between pins 1 and 3.
∗
Generation of 3 pulses between pins 2 and 3 when the fan motor is operating.
Failure of (1)
Æ
faulty PCB
Æ
Replace the PCB.
Failure of (2)
Æ
faulty hall IC
Æ
Replace the fan motor.
Both (1) and (2) result
Æ
Replace the PCB.
The connector has 3 pins, and there are two patterns of lead wire colors.
Summary of Contents for Super Multi Plus E-Series
Page 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump...
Page 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit...
Page 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function...
Page 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300...
Page 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting...
Page 446: ...Wiring Diagrams SiEN18 622 434 Appendix...
Page 452: ...SiEN18 622 vi Index...