Service manual

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