A9 " Indoor Unit: Malfunction Of Electronic Expansion Valve Coil - Daikin VRV III REYQ8PY1 Service Manual

Troubleshooting by Indication on the Remote Controller
A9
" " Indoor Unit:
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
242
Malfunction of Electronic Expansion
Defective drive of electronic expansion valve
Defective PC board of indoor unit
Defective relay cables
Si37-701
Troubleshooting