Bosch Uni 5000F, Руководство по эксплуатации

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Troubleshooting | 9
6 720 648 163 (2011/05)
4 Troubleshooting
4.1 Identifying operating modes and
resetting faults
Two types 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.
Control 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. 4 Resetting the burner
1 Burner
Correcting burner faults
B
Press reset button on burner.
6 720 648 033-02.1T
1
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.