Warning "Ah" Tank Disinfection Function Not Completed Correctly - Daikin ESIE13-02 Service Manual

Error Codes: Hydro-box

Warning "AH" Tank Disinfection Function Not Completed Correctly

3.7
1
Remote controller
display
Method of
malfunction
detection
Malfunction
decision conditions
3
Supposed causes
4
Troubleshooting
5
Part 4 – Troubleshooting
AH
(warning)
The malfunction is detected by thermistor and timer-check.
The error is generated when disinfection function is not completed correctly. Either tank temperature
for disinfection [A.4.4.4.] is not reached or temperature is not kept for required time [A.4.4.5.].
Disinfection function was interrupted by DHW tapping

Large DHW tapping happened recent before the programmed start-up of disinfection

BSH is restricted during disinfection

Are any of the above
supposed causes
happening?
No
Is tank thermistor faulty?
(Check no. 4)
Yes Adapt the schedule/settings so disinfection can work correctly
Yes Change thermistor
102
ESIE13-02