Actuation Of High Pressure Switch - Daikin RXL-W Series Service Manual

Troubleshooting for Outdoor Unit
7.2

Actuation of High Pressure Switch

Applicable
RXL15/18/24WMVJU9
Models
E3
Error Code
Method of Error
Abnormality is detected when the contact of the high pressure switch opens.
Detection
Error Decision
 High pressure switch (S1PH) activating pressure: 4.15 MPa (602 psi)
Conditions  High pressure switch (S1PH) recovery pressure: 3.2 MPa (464 psi)
Supposed  Actuation of high pressure switch (S1PH)
Causes  Closed stop valve
 Disconnection of connector S40
 Disconnection of 2 terminals of high pressure switch (S1PH)
 Defective outdoor unit PCB
 Broken S1PH harness
 Defective high pressure switch (S1PH)
155
SiUS092231E
Part 6 Service Diagnosis