E4 " Outdoor Unit: Actuation Of Low Pressure Sensor - Daikin RQYQ140-180PY1 Service Manual

SiBE341001
E4
" " Outdoor Unit: Actuation of Low Pressure Sensor
2.9
E4
Remote
Controller
Display
Applicable RQYQ-PY1
Models RQEQ-PY1
Method of Abnormality is detected by the pressure value of the low pressure sensor with the main PCB.
Malfunction
Detection
Malfunction Error is generated when the low pressure is dropped under compressor operation.
Operating pressure:0.07MPa
Decision
Conditions
Supposed
Causes
Troubleshooting
Abnormal drop of low pressure
Defect of low pressure sensor
Defect of outdoor unit PCB (A1P)
Stop valve is left in closed
Troubleshooting by Remote Controller
114