Troubleshooting SiE-05C
146 Troubleshooting Inverter K Series
3.23 Outdoor Unit: Malfunction of Discharge Pipe Pressure Sensor
Remote Controller
Display
JJ
JJ
AA
AA
Supposed Causes Defect of high pressure sensor system
Connection of low pressure sensor with wrong connection.
Defect of outdoor unit PC board.
Troubleshooting
∗1: Voltage measurement point
∗2: Refer to pressure sensor, pressure / voltage characteristics table on P366.
(VF049)
The
relationship
between the ∗1
VH and high pressure
is normal (see ∗2) when
voltage is measured between
X22A pins (1) and (3) of
outdoor unit PC
board (A1P)
(see ∗1).
Replace the high pressure sensor.
Connect the high pressure sensor and
turn on again.
NO
NO
Replace outdoor unit PC board A1P.
YES
YES
The high
pressure sensor is
connected to X22A (red) of
outdoor unit PC
board (A1P).
SI-05C.BOOK Page 146 Monday, November 6, 2000 4:13 PM
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