Actuation Of Pressure Sensor - Daikin SkyAir GQI-Eco Series Service Manual

SiBE281013

4.14 Actuation of Pressure Sensor

E4
Remote
Controller
Display
Applicable RZQG
Models
Method of Error [In cooling]
Detection
[In heating]
Error Decision [In cooling]
Conditions
Supposed
Causes
Service Diagnosis
Detect error by the indoor unit intermediate thermistor (R3T).
Detect error by the intermediate heat exchanger thermistor (R5T).
When the detection pressure is the following value
0.12MPa or less continues for 5 minutes
When the saturated pressure equivalent temperature is –34°C
The stop valve is not opened
Disconnection of outdoor unit intermediate thermistor
Disconnection of indoor unit intermediate thermistor
Defective thermistor
Defective outdoor unit PCB (A1P)
Abnormal drop of low pressure
Troubleshooting by Remote Controller
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