H9, J3, J5, J6, J7, J8" Thermistor Or Related Abnormality (Outdoor Unit) - Daikin ESIE13-02 Service Manual

ESIE13-02

"H9, J3, J5, J6, J7, J8" Thermistor or Related Abnormality (Outdoor Unit)

4.9
H9, J3, J5, J6, J7, J8
Remote controller
display
Method of Abnormality is detected according to the temperature detected by each individual thermistor.
malfunction
detection
Malfunction When thermistor is disconnected or short-circuited during operation
decision conditions
Supposed causes



Troubleshooting
H9 : Malfunction of outdoor temperature thermistor system
J3 : Malfunction of discharge pipe thermistor system
J5 : Malfunction of suction pipe thermistor system
J6 : Malfunction of heat exchange thermistor
J7: Malfunction of subcooling heat exchanger thermistor
J8: Malfunction of liquid thermistor
(*) See also "Check No.4 - Resistance Conversion Table (Ambient, Coil, Fin)" on page 153.
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Faulty thermistor
Faulty connection of connector
Faulty outdoor unit PC board (control PC board)
Check connectors for
connection.
Normal?
YES
Remove thermistor from
outdoor unit PC board,
then measure the
resistance using a tester.
Normal?
YES
NO
Connect correctly.
NO
Replace the thermistor.
* Replace the outdoor unit PC board
(A1P) ERHQ***V3* / ERLQ***V3*
* Replace the control PC board (A1P)
ERHQ***W1* / ERLQ***W1*
121
Error Codes: Outdoor Units
Part 4 – Troubleshooting
4
3
4 4
5