Daikin SkyAir FHQ24PVJU - Page 241

SiUS281811EA Troubleshooting by Error Codes
Part 6 Service Diagnosis 235
Reference
Troubleshooting
CHECK 18 Refer to page 308.
NO
NO
NO
YES
YES
Shut the power supply OFF after
connection and then restart.
Replace the electronic expansion
valve coil.
Replace the relay cables.
When restarting the operation after
shutting the power supply OFF
does not work, replace the indoor
unit main PCB (A1P).
NO
Replace the electronic expansion
valve main body.
Power is supplied.
YES
YES
Electronic
expansion valve is
connected to X7A
of indoor unit
PCB.
Relay cables short
circuit or
disconnected.
Check
of electronic
expansion valve coil
indicates normal.
CHECK 18
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.