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

Troubleshooting by Indication on the Remote Controller
E3
3.16 " " Outdoor Unit: Actuation of High Pressure Switch
E3
Remote
Controller
Display
Applicable
ERQ 125 ~ 200 A7V1
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
Causes
182
3.0MPa
Actuation of outdoor unit high pressure switch
Defect of High pressure switch
Defect of outdoor unit PC board (A1P)
Instantaneous power failure
Faulty high pressure sensor
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ESIE09-05
Troubleshooting