4
Troubleshooting
Logano G115 WS US/CA – 6 720 804 873 (2012/10) 7
Information on the boiler room
3.7 Why is regular servicing important?
Heating systems should be regularly maintained for the following
reasons:
• to achieve a high level of efficiency,
• to operate the system economically (low fuel consumption),
• to maintain the cleanest possible combustion.
4 Troubleshooting
4.1 Identifying operating modes and resetting faults
Two type of fault are distinguished:
• Burner faults and
• Control and heating system faults
If there is a burner fault the fault indicator lamp on the burner comes on
(Æ burner documentation). Such faults can generally be reset by
pressing the reset button on the burner.
Controls and heating system faults are indicated on the control unit
display if it has one. More detailed information can be found in the
controls' documentation.
Fig. 5 Resetting the burner
[1] Burner
Correcting burner faults
B Press reset button on burner.
CAUTION: Risk of boiler damage from contaminated
combustion air.
B Keep the combustion air free of corrosive substances
(e.g. halogenated hydrocarbons that contain chlorine
or fluorine compounds).
B Prevent heavy accumulation of dust.
CAUTION: Risk of system damage from water.
B In the event of severe risk of flooding, disconnect the
boiler from its power supply and shut off the fuel
supply before water enters the boiler room.
B After the flood has subsided, ask your installer to
check the heating system before starting it up again.
B All parts that have been in contact with flood water
must be replaced by a qualified heating contractor.
CAUTION: Risk of system damage due to lack of or
inadequate cleaning and maintenance.
B Have your heating system inspected, cleaned and
maintained by a heating contractor once a year.
B We recommend you sign a contract covering an
annual inspection and maintenance on an as-required
basis.
CAUTION: Risk of system damage due to too many
resets. Always follow the burner manufacturer's
instructions.
Too many resets can damage the bur-ner's ignition
transformer.
B Do not press the reset button more than three
times in a row. If the fault does not reset after the
third attempt, localize and rectify the fault with
the help of the burner documentation. Notify a
service contractor if necessary.
CAUTION: Risk of system damage from freezing.
The heating system can freeze up in cold weather if
it has been switched off or disabled by a fault
shutdown.
B Rectify the fault immediately and restart the
heating system.
B If that is not possible, protect the heating system
against freezing by draining it at the lowest point.
Canadian installations of this boiler are required to be
equipped with a blocked vent switch (WMO) that
interrupts the burner in case of an obstructed flue gas
pipe. Call your boiler service technician if you suspect
the WMO may have tripped.
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6 720 615 225-04.1RS