Actuation Of High Pressure Switch - Daikin E-Series Service Manual

Troubleshooting for Outdoor Unit
7.2

Actuation of High Pressure Switch

E3
Remote Control
Display
Applicable
AII outdoor unit models
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:
" Actuation of outdoor unit high pressure switch
Supposed
" Defect of High pressure switch
Causes
" Defect of outdoor unit PCB
" Instantaneous power failure
" Faulty high pressure sensor
308
3.0MPa
SiENBE18-621
Troubleshooting