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Troubleshooting
SiBE811001EB
217
CONVENI-PACK
Troubleshooting
∗
1. Error pressure sensor
∗
2. Voltage measurement point
Refer to P.295.
Error code
Pressure sensor
Electric symbol
J0
Intermediate pressure sensor
S1NPH2 (sub PCB)
JA
High pressure sensor
S1NPH1 (main PCB)
1. Set the high pressure gauge upright
2. Connect the checker for VRV to the
gauge
Reset the operation, and then restart
the outdoor unit.
Replace the high pressure
sensor.
Are the characteristics
of the high pressure
sensor normal?
NO
Replace the outdoor unit main
PCB or sub PCB.
YES
Replace the high pressure
sensor.
Are the characteristics of
the high pressure sensor
normal? (Make a
comparison between the
voltage characteristics
(
∗
1) and the gauge
pressure.)
NO
YES
Replace the outdoor unit main
PCB or sub PCB.
Is the PCB pressure
detection normal?
(Make a comparison
between the checker
pressure data and the
voltage characteristics
(
∗
2). )
NO
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
Measure voltage (DC) here
Outdoor unit PCB
Red
Black
White
(4)
(1)
(2)
(3)
+5V
Micro-computer
A/D input
High pressure
sensor connector
X32A (red)
High pressure
sensor
CHECK 14
CHECK 14