Daikin RXYQ96PYDN Service Manual page 363

Troubleshooting by Indication on the Remote Controller
A9
Indoor Unit: Malfunction of Electronic Expansion Valve
Coil
A9
Remote
Controller
Display
Applicable
Indoor units except FXFQ models
Models
Method of
Check coil condition of electronic expansion valve by using microcomputer.
Malfunction
Detection
Malfunction
Pin input for electronic expansion valve coil is abnormal when initializing microcomputer.
Decision
Conditions
Supposed
Causes
Troubleshooting
348
Defective drive of electronic expansion valve
Defective PC board of indoor unit
Defective relay cables
SiUS34-801A_b
Troubleshooting