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7
Troubleshooting
The Heatronic boiler control monitors all safety and control components.
If a fault arises during operation, an audible warning tone sounds.
Press a button to mute the warning sound.
The display indicates a fault code (e.g.
flashing.
If the reset button is flashing:
▶ Press the reset button and hold it until
The appliance starts up again and the current supply temperature is displayed.
If the reset button is not flashing:
▶ Switch the appliance OFF and ON again.
The appliance starts up again and the current supply temperature is displayed.
If the fault persists:
▶ Contact a trained and certified heating contractor for assistance, providing
details of the fault code and the appliance type and serial number.
An overview of the display codes can be found on page 24
Greenstar FS/Combi FS – 6720810589 (2021/01)
) and the reset button may also be
appears on the display.
Troubleshooting
29
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