Hall Ic Check - Daikin FT25CV1A Service Manual

Check
5.11

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)
Failure of (2)
Both (1) and (2) result
122
∗
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.
faulty PCB
faulty hall IC
Replace the PCB.
Replace the PCB.
Replace the fan motor.
Si01-406
Service Diagnosis