47
for the user
15 HEATING SYSTEM TEMPERATURE displayed
• When indication is CONSTANTLY on, it shows heating system water ACTUAL temperatu-
re (flowing out the boiler).
• When temperature (or dispersion coefficient*) is modified pressing knobs
or ,
SET heating temperature (or dispersion coefficient*) FLASHES for few seconds.
* if optional external probe is installed.
16 HEATING symbol
• Boiler in winter mode
• While flashing, boiler is heating radiators.
17 REMOTE displayed
• Remote control has been installed; most of controls are now available on to remote control
only. Please refer to remote control instruction manual.
18 ALARM CODE displayed
• An alarm code is displayed after boiler blocking and identifies the type of failure occurred.
• Please refer to ‘Boiler blocking and alarm codes’ to understand what happened and prevent
future problems.
19 SERVICE displayed
• Boiler is blocked and can be reset by technical service only.
20 RESET displayed
• Boiler is blocked.
• Please refer to ‘Boiler blocking and alarm codes’ to: understand what happened; restore
boiler operation; prevent future problems.
Boiler blocking and alarm codes
In this section all alarm codes which can be displayed are described, together with the relevant
operations to be carried out by the USER to restore boiler operation.
If, carrying out the described operations, boiler does not work anyway, or blocking
happens again, please contact a Hermann Technical Centre.
All alarms displayed with red FLASHING light and ‘service’ writing on display MUST
be solved by a Hermann technical centre only. All technical description of causes and
solutions for ‘service’ alarms are described in “Crypt Warnings for Technical experts”.
07 Burner ON for combustion check
Cause: the burner was turned ON at maximum power for combustion check (this may be
caused by a wrong pressing of pushbuttons), and this is NOT a function useful for the
User.
Solution: Switch off boiler by pressing
, wait some seconds, and then you can turn the
boiler on again and use it normally.
E01 No flame
Red light: constantly on Alarm type: reset
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