Symptom: Tank Disinfection Function Is Not Completed Correctly (Ah-Error); Solving Problems Based On Error Codes; To Display The Help Text In Case Of A Malfunction - Daikin ETSHB16P30EF Installer's Reference Manual

14 | Troubleshooting

14.3.10 Symptom: Tank disinfection function is NOT completed correctly (AH-error)

14.4 Solving problems based on error codes

14.4.1 To display the help text in case of a malfunction

Installer reference guide
258
Possible causes
The disinfection function was
interrupted by domestic hot water
tapping
Large domestic hot water tapping
happened recently before the
programmed start-up of the disinfection
function
The disinfection operation was stopped
manually: [C.3] Operation > Tank was
turned off during disinfection.
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 most possible error codes and their
descriptions as they appear on the user interface.
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.
Corrective action
Program the start-up of the disinfection
function when the coming 4 hours NO
domestic hot water tapping is expected.
If in [5.6] Tank > Heat up mode the
mode Reheat only is selected, it is
recommended to program the start-up
of the disinfection function at least
4 hours later than the last expected
large hot water tapping. This start-up
can be set by installer settings
(disinfection function).
Do NOT stop tank operation during
disinfection.
EPRA14~18DAV3+W1 + ETSH/X(B)16P30+50EF
Daikin Altherma 3 H HT ECH₂O
4P679467-1 – 2022.02