Specifications

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