44 | Troubleshooting
6 720 813 643 (2018/04)
6 Troubleshooting
6.1 Error codes diagnostics
To remove error codes from the display,
▶ Hold the On/Off button more than 3 sec. (long press).
6.2 Remote control doesn’t turn on
if the display is blank;
1. Check if cable wiring is correctly connected, on the water heater and remote
control.
2. Check if water heater is turn on.
6.3 Error symbol
Fig. 25
[1] Error symbol
When error symbol appears, communication with appliance is not possible.
▶ Check for electromagnetic fields near the cable way.
Only remove the error code after the problem solved!
▶ Read the Bosch Water Heater Installation and Operating
manual for more information on error codes.
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