J1" Malfunction Of Pressure Sensor - Daikin ESIE13-02 Service Manual

Error Codes: Outdoor Units

"J1" Malfunction of Pressure Sensor

4.10
1
Remote controller
display
Method of
malfunction
detection
Malfunction
decision conditions
3
Supposed causes
4
Troubleshooting
5
Part 4 – Troubleshooting
J1
The malfunction is detected by the pressure measured with pressure sensor (S1NPH)
When the defect pressure becomes following:
Detected pressure ≤ -0.05MPa continues 185 s.

Detected pressure ≥ -0.05MPa continues 185 s.

Faulty pressure sensor

Faulty outdoor unit PC board

Incorrect connection of connector

Check if the connector for the
pressure sensor (X17A) is
correctly connected to the
outdoor unit PC board (A1P)
Is it
connected
correctly?
YES
Measure the voltage (V)
between the pins # (2) and
(3) of the above connector
(*1).
YES
Is the
relation between
the pressure and the
voltage normal?
(*2).
YES
NO
Connect correctly.
NO
Replace the pressure
sensor (S1NPH).
* Replace outdoor unit PC
board (A1P) ERHQ***V3* / ERLQ***V3*
* Replace the control PC
board (A1P) ERHQ***W1* / ERLQ***W1*
122
ESIE13-02