Hermann Eura Condensing Installation, User And Servicing Instructions page 52

8 RESET knob
• Before pressing this knob, please refer to "Boiler blocking and alarm codes" to under-
stand what happened and prevent future problems.
• Pressing this knob allows to reset boiler after a failure (that could be reset by end user);
when such type of failure occurs, warning writing 'reset' is displayed together with alarm
code (see 18 and 20 in enclosed picture), and RED light turns CONSTANTLY ON.
• If RED light FLASHES, and an alarm code and 'service' appears on to the display (18 and
19), it is necessary to call a technical centre to solve problem; reset knob is NOT working.
9 PLUS symbol
• When plus is displayed, "PLUS" function has been enabled.
10 HOT WATER symbol
• When hot water is ready at set temperature, this symbol is displayed, both in summer and
winter mode.
• When this symbol flashes, there is a hot water supply going on.
11 DOMESTIC SYSTEM TEMPERATURE displayed
• Set sanitary water temperature is shown. It flashes for few seconds while changing tem-
perature by pressing
12 Red light – BOILER BLOCKED
• When red light is off, boiler is normally working.
• When red light is CONSTANTLY on, a boiler failure, which can be reset by end user,
happened and 'reset' is displayed (18 and 20 in enclosed picture. Please refer to 'Boiler
blocking and alarm codes' to understand what happened and prevent future problems.
Then press 'reset' button.
• When red light FLASHES, and an alarm code and 'service' appears on to the display (18
and 19), it is necessary to call a technical centre to solve problem.
13 Orange light – BURNER WORKING
• When orange light is CONSTANTLY on, burner is ignited.
• When orange light is flashing it means that the technician, to do particular service and
maintenance operations, has excluded one function of the boiler which does not prevent
the boiler ignition. After about 20 minutes the lamp will stop flashing and the boiler will
continue its normal function.
14 Green light – BOILER ON/STAND-BY
• When green light flashes, boiler is electrically fed, in stand-by mode.
• When green light is constantly on, boiler is ready to work.
User instructions
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