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17
Faults
17.1
Troubleshooting
DANGER: Explosion!
▶ Close the gas cock prior to working on the gas train.
▶ Check for gas leaks after carrying out work on the gas
train.
DANGER: Risk of flue gas poisoning.
▶ Check for leaks after carrying out work on the venting
system.
DANGER: Risk of electric shock!
▶ Always disconnect the appliance from the mains
power before performing any work. Disconnect the
emergency shutoff switch or disengage the heating
system circuit breaker. Take measures to prevent
accidental re-connection.
WARNING: Danger of scalding!
Hot water can scald.
▶ Drain the appliance before working on components
that are water filled.
NOTICE: The Heatronic boiler control can be damaged
by leaking water.
▶ Cover the Heatronic prior to work on water filled
components.
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.
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.
An overview of the faults can be found on page 74.
An overview of the status codes can be found on
page 72.
If the fault persists:
▶ Check the PCB and replace if required. Adjust the service functions
in accordance with the commissioning report ( page 78).
Greenstar FS
) and the reset button flashes.
appears on the display.
Faults | 73
6 720 810 590 (2015/05)
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