Check
SiUS042113E
136
Part 6 Service Diagnosis
5.4 Electronic Expansion Valve Check
Check No.12
Conduct the following to check the electronic expansion valve (EV).
1. Check if the EV connector is correctly connected to the PCB.
2. Turn the power off and on again, and check if the EV generates a latching sound.
3. If the EV does not generate a latching sound in step 2, disconnect the connector and check the
continuity using a multimeter.
4. Check the continuity between the pins 5 - 1, 5 - 2, 5 - 3, 5 - 4 (between the pins 6 - 1, 6 - 2, 6 - 3,
and 6 - 4 for the 6P connector models). If there is no continuity between the pins, the EV coil is
faulty.
5. If the continuity is confirmed in step 3, the outdoor unit PCB (main PCB) is faulty.
Harness 5P
5P Connector
Check
S20
5 - 1
5 - 2
5 - 3
5 - 4
1 2 3 4 5
(R23663)
Harness 5P
6P Connector
(5)
Check
S20
6 - 1
6 - 2
6 - 3
6 - 4
1 2 3 4 5 6
(R23593)
Summary of Contents for FTXM-V Series
Page 16: ...SiUS042113E 12 Part 2 Specifications 1 Specifications 13 Part 2 Specifications...
Page 96: ...Troubleshooting SiUS042113E 92 Part 6 Service Diagnosis Reference Check No 01 Refer to P 134...
Page 150: ...Check SiUS042113E 146 Part 6 Service Diagnosis 18 24 class R24539 DC DC W V U...
Page 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Page 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...
