Actuation Of High Pressure Switch (S1Ph) Or Pressure Switch (S2P) - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

Troubleshooting by Remote Controller
2.4 Actuation of High Pressure Switch (S1PH) or Pressure
Switch (S2P)
E3
Remote
Controller
Display
Applicable RQYQ-PY1B
Models
Method of Error Abnormality is detected by the protection device circuit that detects continuity at the high
pressure switch and pressure switch.
Detection
Error Decision When the contact of the high pressure switch or pressure switch opens.
(Reference) Operating pressure of high pressure switch
Conditions
Operating pressure: 4.0MPa
Reset pressure:
Operating pressure of pressure switch
Operating pressure: 3.3MPa
Reset pressure:
Supposed
Causes
106
3.0MPa
2.5MPa
Actuation of outdoor unit high pressure switch or pressure switch
Defective high pressure switch or pressure switch
Defective outdoor unit main PCB (A1P)
Instantaneous power failure
Defective high pressure sensor
SiBE341027
Service Diagnosis