Electronic Expansion Valve Check - Daikin H Series Service Manual

SiUS04-924_A
5.4

Electronic Expansion Valve Check

Check No.12 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 and
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.
112
check the continuity using a tester.
there is no continuity between the pins, the EV coil is faulty.
Harness 6P
Check
S20 6P Connector
1 2 3 4 5 6
5-2
5-4
6-1
6-3
(R14242)
Service Diagnosis
Check