Service manual

Troubleshooting by Indication on the Remote Controller SiUS28-902_a
117 Troubleshooting
3.26 “JA” Outdoor Unit: Malfunction of High Pressure Sensor
Remote
Controller
Display
JA
Applicable
Models
RZQ18~30PVJU
Method of
Malfunction
Detection
Malfunction is detected from the pressure detected by the high pressure sensor.
Malfunction
Decision
Conditions
When the high pressure sensor is short circuit or open circuit.
Supposed
Causes
 Defect of high pressure sensor
 Connection of low pressure sensor with wrong connection.
 Defect of outdoor unit P.C.B.