E4" Outside Unit: Actuation Of Low Pressure Sensor; Actuation Of Low Pressure Sensor - Daikin VRV - WII Service Manual

SiUS30-604
2.15 "E4" Outside Unit:
E4
Remote
Controller
Display
Applicable RWEYQ60, 72, 84MTJU
Models
Method of Judge the pressure detected by a low pressure sensor with the main PCB.
Malfunction
Detection
Malfunction When low pressure drops while the compressor is in operation
Working pressure: 10.1psi
Decision
(Retry: 3 times)
Conditions
Supposed
Causes
Troubleshooting

Actuation of Low Pressure Sensor

Abnormal low pressure drop
Faulty low pressure sensor
Faulty main PCB
The stop valve left closed
Insufficient heat source water
Dirty water heat exchanger
Troubleshooting by Indication on the Remote Controller
175