SiBE341027
Troubleshooting by Remote Controller
Service Diagnosis
127
2.16 High Pressure Sensor Abnormality
Remote
Controller
Display
J1
Applicable
Models
RQYQ-PY1B
Method of Error
Detection
Error is detected from the pressure measured with high pressure sensor.
Error Decision
Conditions
When the high pressure sensor is short circuit or open circuit.
(Not less than 4.22MPa, or 0.01MPa or less)
Supposed
Causes
Defective high pressure sensor
Connection of low pressure sensor with wrong connection.
Defective outdoor unit PCB.
Defective connection of high pressure sensor
Troubleshooting
Note:
*1. Pressure sensor subject to error code
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace the outdoor unit sub PCB
(A2P).
Replace the high pressure sensor.
YES
NO
Replace the outdoor unit sub PCB
(A2P).
NO
Replace the high pressure sensor.
YES
NO
Are the
characteristics of the
high pressure sensor normal?
(Make a comparison between
the voltage characteristics (*2)
and the gauge
pressure.)
YES
If the
PCB pressure detection
normal? (Make a comparison
between the checker pressure
data and the voltage
characteristics
(*2).)
1.Set the high pressure gauge.
2.Connect the checker for
VRV.
Reset the operation, and then
restart the operation.
Are the
characteristics of the
high pressure sensor
normal?
Error code
Pressure sensor subject to error code
Electric symbol
J1
High pressure sensor (Liquid pipe outlet)
S2NPH
