Herz firestar Lambda 18 - Page 28

10
Fault reports and their correction
28 Betriebsanleitung_firestar_18-40_Lambda_Englisch_V1.6
Other possible faults
Cause
Corrective actions
Boiler capacity too low
The calorific value of the used fuel
is too low. The moisture of the
fuel is higher than 25%.
 Use required fuel at required
moisture
The operating conditions were not
observed.
 Call for service
The exhaust gas collector or the
exhaust system is leaking.
 Check test openings and
exhaust ports and if
necessary seal them
The boiler capacity is for the
application too small.
 Call for service
Supply air is missing.
 Provide for sufficient fresh air
 Call for Service
The door seals are defect.
 Call for service
The exhaust gas collector and the
combustion chamber are dirty, so
very little heat transfer is
available.
 Clean the boiler
Incorrect air intake
 Check the tightness of the
test openings and doors
Dust deposits on or near the
cleaning cap.
The cleaning cap is not closed
correctly or the seals are leaking.
 Close the cleaning cap
correctly
 Call for service
Excessively condensate is
formed in the filling room of the
boiler.
Excessive boiler performance at
low heat consumption (induced
draft fan does not rotate).
 Insert less fuel
 Correct inadequate heat
consumption of the heating
system
The fuel is incorrect or too moist.
 Use required fuel
The boiler water temperature is
too low.
 Call for service
Induced draft fan does not rotate
or is too loud.
Attention!
A fan which is not in operation
leads to incomplete combustion
and tar deposits.
Only when fan is not in operation:
The maximum boiler temperature
or exhaust temperature is
reached.
 No fault! Boiler is operating
properly. Induced draft fan
starts when you open the
filling door. Too much fuel.
Blower motor is defect.
 Call for service
The door switch is in the wrong
position or defective.
 Call for service