Daikin VRV X RXQ6-48ANR Series, Руководство по обслуживанию

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Troubleshooting by Error Code SiME341909EA
214 Part 6 Service Diagnosis
Reference
5.37 Low Pressure Sensor Abnormality
Applicable
Models
All outdoor unit models
Error Code
JC
Method of Error
Detection
Detect according to temperature detected with the low pressure sensor.
Error Decision
Conditions
The low pressure sensor is short circuit or open circuit.
(Pressure range: 0-1.7 MPa)
Supposed
Causes
 Defective low pressure sensor
 Connection of high pressure sensor in mistake for low pressure sensor
 Defective outdoor unit main PCB
 Defective connection of low pressure sensor
Troubleshooting
CHECK 12 Refer to page 272.
Are the
characteristics of
the low pressure
sensor normal? (Make a
comparison between voltage
characteristics and gauge
pressure.)
Replace the low pressure sensor
(S1NPL).
Replace the outdoor unit main
PCB (A1P).
NO
Is the
outdoor unit main
PCB detection pressure
normal? Make a comparison
between data on pressure checked by
the Service Checker and the
voltage characteristics.
Replace the outdoor unit main
PCB (A1P).
NO
Are the
characteristics of the low
pressure sensor
normal?
Replace the low pressure sensor
(S1NPL).
NO
YES
YES
YES
Reset the operation, and then
restart it.
(1) Mount a pressure gauge on the
low pressure service port.
(2) Connect the Service Checker for
VRV systems.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
CHECK 12
CHECK 12