E4" Outdoor Unit: Actuation Of Low Pressure Sensor - Daikin VRV III RXYQ5-54PY1 Service Manual

Troubleshooting by Indication on the Remote Controller
3.15 "E4" Outdoor Unit:
E4
Remote
Controller
Display
Applicable RXYQ5P~54P
Models
Method of Abnormality is detected by the pressure value with the low pressure sensor.
Malfunction
Detection
Malfunction Error is generated when the low pressure is dropped under specific pressure.
Operating pressure:0.07MPa
Decision
Conditions
Supposed
Causes
238
Actuation of Low Pressure Sensor
Abnormal drop of low pressure (Lower than 0.07MPa)
Defect of low pressure sensor
Defect of outdoor unit PC board
Stop valve is not opened.
Si34-601A
Troubleshooting