Check; How To Check - Daikin Floor Standing Type F-Series Service Manual

Check

5. Check

5.1

How to Check

5.1.1 Fan Motor Connector Output Check
Check No.01 1. Check the connection of connector.
2. Check the motor power supply voltage output (pins 4 - 7).
3. Check the motor control voltage (pins 4 - 3).
4. Check the rotation command voltage (pins 4 - 2).
5. Check the rotation pulse (pins 4 - 1).
5.1.2 Electronic Expansion Valve Check
Check No.04 Conduct the followings to check the electronic expansion valve (EV).
1. Check to see if the EV connector is correctly connected to the PCB.
2. Turn the power off and on again, and check to see if the EV generate latching sound.
3. If the EV does not generate latching sound in the above step 2, disconnect the connector
4. Check the continuity between the pins 1 - 6 and 3 - 6, and between the pins 2 - 5 and 4 - 5. If
5. If the continuity is confirmed in the above step 3, the outdoor unit PCB is faulty.
Note: Please note that the latching sound varies depending on the valve type.
127
S1
7
6
5
4
3
2
1
and check the continuity using a tester.
there is no continuity between the pins, the EV coil is faulty.
1
Motor power supply voltage (310 ~ 340 VDC)
Unused
Unused
GND
Motor control voltage (15 VDC)
Rotation command voltage (1 ~ 6 VDC)
Rotation pulse
Harness 6P
6P Connector
Check
2 3 4 5 6
SiBE06-708_A
(R12099)
5 - 2
5 - 4
6 - 1
6 - 3
(R1082)
Service Diagnosis