Daikin Skyair RY71K, Service Manual

Page: 107 / 244

Procedure of Self-Diagnosis by Remote Controller Si-71A
96 Troubleshooting
4.4 Remote Controller Display Malfunction Code and Contents
„
In the case of the shaded error codes, “inspection” is not displayed. The system operates, but be sure to
inspect and repair it.
Note 1: Operation when a malfunction occurs may differ according to the model.
Malfunction Code Contents/Processing Remarks
A1 Failure of PC board ass’y for indoor unit
A3 Malfunction of water level system
A6 Indoor unit fan motor overload / overcurrent / lock
A7 Swing flap motor lock Only Air flow dilection adjustment cannot be set.
AJ Failure of capacity setting Either capacity data is set incorrectly, or capacity has
not been set for the data IC
C4 Malfunction of heat exchanger temperature sensor
system
C9 Malfunction of suction air temperature sensor system
E0 Actuation of safety device (outdoor unit)
E1 Failure of outdoor unit PC board ass’y
E3 High pressure malfunction (outdoor unit)
E4 Low pressure malfunction (outdoor unit)
E9 Malfunction of electronic expansion valve (outdoor unit)
F3 Discharge pipe temperature malfunction (outdoor unit)
H3 Failure of high pressure switch (outdoor unit)
H4 Failure of low pressure switch (outdoor unit)
H9 Malfunction of outdoor air temperature sensor system
(outdoor unit) (Note 1)
H9 Malfunction of outdoor air temperature sensor system
(outdoor unit) (Note 1)
J3 Malfunction of discharge pipe temperature sensor
system (outdoor unit)
J5 Malfunction of suction pipe temperature sensor system
(outdoor unit)
J6 Malfunction of heat exchanger temperature sensor
system (outdoor unit) (Note 1)
J6 Malfunction of heat exchanger temperature sensor
system (outdoor unit) (Note 1)
PJ Failure of capacity setting (outdoor unit) Either capacity data is set incorrectly, or capacity has
not been set for the data IC
U0 Malfunction of suction pipe temperature
U1 Reverse phase Switch R.S.T. of the 3-phase power supply.
U4 Failure of transmission (between indoor and outdoor
unit) Transmission between indoor and outdoor unit is not
being correctly carried out.
U5 Failure of transmission (between indoor unit and
remote controller) Transmission between indoor and remote controller is
not being correctly carried out.
U8 Failure of transmission (between “main” and “sub”
remote controller Transmission between “main” and “sub” remote
controller is not being correctly carried out.
UA Failure of field setting System setting mistake for Twin system.
UC Address duplication of central remote controller