Electronic Expansion Valve Coil Check - Daikin K-Series Service Manual

SiBE061121.book Page 121 Monday, April 25, 2011 3:21 PM
SiBE061121
5.4

Electronic Expansion Valve Coil Check

Check No.12 Conduct the followings to check the electronic expansion valve coil (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, 2 - 6, 3 - 6, and 4 - 6. If there is no continuity
5. If the continuity is confirmed in the above step 3, the PCB is faulty.
Note: Please note that the latching sound varies depending on the valve type.
Service Diagnosis
and check the continuity using a tester.
between the pins, the EV coil is faulty.
Indoor unit : S50
Outdoor unit : S20
Harness 5P
6-1
(5)
6-2
Check
6P Connector
6-3
6-4
1 2 3 4 5 6
(R14744)
Check
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