Indoor Fan Motor Connector Output Check - Daikin FTX20K(2)V1B Service Manual

SiBE041525F
5.2

Indoor Fan Motor Connector Output Check

 Fan motor wire breakdown / short circuit check
Check No.03
1. Check the connector for connection.
2. Turn the power off.
3. Check if each resistance at the phases U - V and V - W is 90 Ω ~ 100 Ω (between the pins
 Motor control voltage check
1. Check the connector for connection.
2. Check the motor control voltage is generated (between the pins 2 - 3).
 Rotation pulse check
1. Check the connector for connection.
2. Turn the power on and stop the operation.
3. Check if the Hall IC generates the rotation pulse 4 times when the fan motor is manually
Service Diagnosis
12 - 9, and between 9 - 6).
rotated once (between the pins 1 - 3).
S200
12
11
10
9
8
7
6
5
4
3
2
1
Phase U
Free pin
Free pin
Phase V
Free pin
Free pin
Phase W
Free pin
Free pin
GND
Motor control voltage (15 VDC)
Rotation pulse (5 VDC)
Check
(R11979)
80