E3" Outdoor Unit: Actuation Of High Pressure Switch - Daikin VRVIII-S Service Manual

SiENBE34-703
3.15 "E3 " Outdoor Unit: Actuation of High Pressure Switch
E3
remote control
Display
Applicable
RXYSQ4~6P
Models
Method of
Abnormality is detected when the contact of the high pressure protection switch opens.
Malfunction
Detection
Malfunction
Error is generated when the HPS activation count reaches the number specific to the operation
Decision mode.
(Reference) Operating pressure of high pressure switch
Conditions
Operating pressure: 4.0MPa
Reset pressure:
Supposed
! Actuation of outdoor unit high pressure switch
Causes ! Defect of High pressure switch
! Defect of outdoor unit PC board (A1P)
! Instantaneous power failure
! Faulty high pressure sensor
Troubleshooting
Troubleshooting by Indication on the remote control
3.0MPa
139