Service
Troubleshooting
Fault diagnosis and repair
In the event of a malfunction, first check
that the prerequisites for correct
operation are fu llfilled:
1. Is the system connected to the
power supply?
2. Is there any gas pressure?
3. Is the gas shut-off valve open?
4. Are all control and safety devices,
such as the boiler thermostat, low
water level detector, limit switch,
etc. adjusted correctly?
If the malfunction persists, use the
following table.
It is not permitted to repair any
420010489905
components relevant to safety.
These components must be
replaced by parts with the same
WARNING
order number.
Only use original spare parts.
WARNING
In the event the burner stops, in
order to preventany damage to
the installation, do not unblock
WARNING
the burner more than twice in a row. If
the burner locks for a third time, con
tact the customer service.
NB: after each operation:
• under normal operating conditions
(doors closed, hood fitted, etc.), check
combustion and check the individual
lines for leaks.
• Record the results in the relevant
documents.
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EN
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