Actuation Of Low Pressure Sensor - Daikin SkyAir RZR-P Series Service Manual

Troubleshooting by Remote Controller

2.24 Actuation of Low Pressure Sensor

E4
Remote
Controller
Display
Applicable RZR, RZQ
Models
Method of Error
Abnormality is detected by the pressure value with the low pressure sensor.
Detection
Error Decision
Error is generated when the low pressure is dropped during compressor operating.
Conditions Operating pressure: 10 psi
 Abnormal drop of low pressure (Lower than 10 psi)
Supposed
 Defective low pressure sensor
Causes
 Defective outdoor unit PCB
 Stop valve is not opened.
 Clogged filter
Service Diagnosis
SiUS281117
133