Service manual

Troubleshooting by Indication on the Remote Controller SiUS28-902_a
109 Troubleshooting
3.19 “E9” Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)
Remote
Controller
Display
E9
Applicable
Models
RZQ18~30PVJU
Method of
Malfunction
Detection
Check disconnection of connector
Check continuity of expansion valve coil
Malfunction
Decision
Conditions
Error is generated under no common power supply when the power is on.
Supposed
Causes
 Defect of moving part of electronic expansion valve
 Defect of outdoor unit P.C.B. (A1P)
 Defect of connecting cable