Error Codes: Hydro-box
ESIE13-02
Part 4 – Troubleshooting
102
3
1
4
5
3.7
Warning
“AH”
Tank Disinfection Function Not Completed Correctly
Remote controller
display
AH
(warning)
Method of
malfunction
detection
The malfunction is detected by thermistor and timer-check.
Malfunction
decision conditions
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.].
Supposed causes
Disinfection function was interrupted by DHW tapping
Large DHW tapping happened recent before the programmed start-up of disinfection
BSH is restricted during disinfection
Troubleshooting
No
Yes
Adapt the schedule/settings so disinfection can work correctly
Yes
Change thermistor
Are any of the above
supposed causes
happening?
Is tank thermistor faulty?
(Check no. 4)
