Daikin RWEYQ28PY1 [225/342] Outside unit malfunction of suction pipe pressure sensor

Daikin RWEYQ30PY1 [225/342] Outside unit malfunction of suction pipe pressure sensor
Troubleshooting by Indication on the Remote Controller Si30-813
214 Troubleshooting
2.31
JC
Outside Unit: Malfunction of Suction Pipe Pressure
Sensor
Remote
Controller
Display
JC
Applicable
Models
Outside unit
RWEYQ8P, 10P
Method of
Malfunction
Detection
Malfunction is detected from pressure detected by low pressure sensor.
Malfunction
Decision
Conditions
When the suction pipe pressure sensor is short circuit or open circuit.
Supposed
Causes
Defect of low pressure sensor system
Connection of high pressure sensor with wrong connection.
Defect of outside unit PC board.
Troubleshooting
1: Voltage measurement point
2: Refer to pressure sensor, pressure/voltage characteristics table on P.311.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
The
relationship
between the 1
VH and low pressure is
normal (see 2) when voltage
is measured between X45A pins
(2) and (3) of outside unit
PC board (A1P)
(see 1).
Replace the low pressure sensor.
Connect low pressure sensor
property and restart system.
NO
NO
Replace outside unit PC board
A1P.
YES
YES
The low
pressure sensor is
connected to X45A (blue) of
outside unit PC board
(A1P).

Содержание

Скачать