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

SiUS181305E
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
Conditions (Reference)
Operating pressure: 4.0 MPa (1338 ftAq)
Reset pressure:
 Actuation of high pressure switch
Supposed
 Defective high pressure switch
Causes
 Defective outdoor unit PCB
 Instantaneous power failure
 Defective high pressure sensor
Troubleshooting
3.0 MPa (1004 ftAq)
Troubleshooting for Outdoor Unit
184