Hall Ic Check - Daikin FLXS-BAVMB Service Manual

Check
RK(X)S25/35G2V1B9, RXS25/35J2V1B
1. Check that the voltage between the pins 10 - 11 is 15 VDC.
2. Check if the Hall IC generates the rotation pulse (0 ~ 15 VDC) 4 times between the pins 10 -

5.12 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.
If NG in step 1
If NG in step 2
If OK in both steps 1 and 2
The connector has 3 pins.
113
12, 10 - 13, when the fan motor is manually rotated once.
13
12
11
10
9
8
7
6
5
4
3
2
1
∗
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.
Defective PCB
Defective Hall IC
S7
1
2
3
S70
HV (Hall IC)
HU (Hall IC)
15 VDC
Free pin
Free pin
Phase W
Free pin
Free pin
Phase V
Free pin
Free pin
Phase U
Replace the PCB.
Replace the fan motor.
Replace the PCB.
Gray (power supply)
Purple (signals)
Blue (grounding)
SiBE05-722_B
(R11907)
(R14211)
Service Diagnosis