To Display The Help Text In Case Of A Malfunction; Error Codes Of The Unit - Daikin EWYA004D2V3P Installer's Reference Manual

15 | Troubleshooting

15.4.1 To display the help text in case of a malfunction

15.4.2 Error codes of the unit

Installer reference guide
204
INFORMATION
See the service manual for:
▪
The complete list of error codes
▪
A more detailed troubleshooting guideline for each error
In case of a malfunction, the following will appear on the home screen depending
on the severity:
▪ : Error
▪ : Malfunction
You can get a short and a long description of the malfunction as follows:
1 Press the left dial to open the main menu and go to
Malfunctioning.
Result: A short description of the error and the error code is
displayed on the screen.
2 Press in the error screen.
Result: A long description of the error is displayed on the
screen.
= Compressor module,
Error code
7H-01 Water flow problem
7H-05 Water flow problem during heating/sampling
7H-06 Water flow problem during cooling/defrost
7H-07 Water flow problem. Pump deblocking active
7H-08 Pump abnormality during operation (pump
feedback)
80-00 Returning water temperature sensor problem
80-01 Entering water thermistor abnormality of
outdoor unit
81-00 Leaving water temperature sensor problem
81-01 Mixed water thermistor abnormality.
89-01 Heat exchanger freeze-up protection activated
during defrost (error)
89-02 Heat exchanger freeze-up protection activated
during heating / DHW operation. (warning)
89-03 Heat exchanger freeze-up protection activated
during defrost (warning)
89-05 Heat exchanger freeze-up protection activated
during cooling operation. (error)
= Hydro module
Description
EWAA004~008D + EWYA004~008D
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688013-1B – 2022.09