E4 Actuation Of Low Pressure Sensor - Daikin R71FUV1 Service Manual

Si20-701_B
E4
3.30
Sensor
Remote Controller Display
E4
Applicable Models
CMSQ
Method of Error Detection
Abnormality is detected by the pressure value with the
low pressure sensor.
Error Decision Conditions
Error is generated when the low pressure drops while the
compressor is in operation.
Supposed Causes
Abnormal drop of low pressure
Defective low pressure sensor
Defective outdoor unit PCB
Stop valve is not opened
Clogged filter
168
Actuation of Low Pressure
Troubleshooting by Remote Controller