Daikin Altherma 3 GEO Series - Solving Problems Based on Error Codes; To Display the Help Text in Case of a Malfunction; Error Codes: Overview

14 | Troubleshooting
Installer reference guide
222
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
14.4 Solving problems based on error codes
If the unit runs into a problem, the user interface displays an error code. It is
important to understand the problem and to take measures before resetting an
error code. This should be done by a licensed installer or by your local dealer.
This chapter gives you an overview of all possible error codes and their descriptions
as they appear on the user interface.
For detailed troubleshooting of each error, see the service manual.
14.4.1 To display the help text in case of a malfunction
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.
14.4.2 Error codes: Overview
Error codes of the unit
Error code Description
7H-01 Water flow problem
7H-04 Water flow problem during domestic hot water
production
7H-05 Water flow problem during heating/sampling
7H-06 Water flow problem during cooling/defrost
7H-07 Water flow problem. Pump deblocking active
80-00 Returning water temperature sensor problem
81-00 Leaving water temperature sensor problem
81-04 Leaving water temperature sensor not
properly mounted
89-01 Heat exchanger frozen
89-02 Heat exchanger frozen
89-03 Heat exchanger frozen
8F-00 Abnormal increase outlet water temperature
(DHW)
8H-00 Abnormal increase outlet water temperature