Actuation Of High Pressure Switch - Daikin RMXS-L Series Service Manual

SiUS181631EA
7.2

Actuation of High Pressure Switch

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