Hall Ic Check - Daikin Super Multi NX C-Series Service Manual

SiE12-411

6.1.15 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.
Failure of (1) $ faulty PCB $ Replace the PCB.
Failure of (2) $ faulty hall IC $ Replace the fan motor.
Both (1) and (2) result $ Replace the PCB.
The connector has 3 pins, and there are two patterns of lead wire colors.
Service Diagnosis
∗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.
1
2
3
1
2
3
Gray (power supply)
Purple (signals)
Blue (grounding)
White (power supply)
White with black line (signals)
White with manufacturer mark (grounding)
Check
213