E4 Actuation Of Pressure Sensor - Daikin R71FUV1 Service Manual

Si20-701_B
E4
3.29
Sensor
Remote Controller Display
E4
Applicable Models
RZQ-K, RZQ(S)-C, RZQG-L, RZR-KU/HU
Method of Error Detection
For except RZQG
[In cooling]
Detect error by the pressure sensor.
[In heating]
Detect error by the intermediate heat exchanger
thermistor.
For RZQG
[In cooling]
Detect error by the indoor unit intermediate thermistor.
[In heating]
Detect error by the intermediate heat exchanger
thermistor.
Error Decision Conditions
[In cooling]
When the detection pressure is the following value
0.12MPa or less continues for 5 minutes
For except RZQG
When the saturated pressure equivalent to the
detection temperature is the following value 0.12MPa
or less continues for 5 minutes
For RZQG
When the saturated pressure equivalent temperature
is -34°C
Supposed Causes
The stop valve is not opened
Defective pressure sensor and intermittent harness
Defective thermistor
164
Actuation of Pressure
Troubleshooting by Remote Controller