SiUS181631EA Troubleshooting for Outdoor Unit
Troubleshooting 227
7.2 Actuation of High Pressure Switch
Error Code
E3
Method of Error
Detection
Abnormality is detected when the contact of the high pressure switch opens.
Error Decision
Conditions
When the high pressure switch activation count reaches the number specific to the operation mode
(Reference)
Operating pressure: 4.0 MPa (1338 ftAq)
Reset pressure: 3.0 MPa (1004 ftAq)
Supposed
Causes
îš„
Actuation of high pressure switch
îš„
Defective high pressure switch
îš„
Defective outdoor unit PCB
îš„
Instantaneous power failure
îš„
Defective high pressure sensor
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