Fault Reports And Their Correction - Herz firestar 15 Operating Instructions Manual

FAULT REPORTS AND THEIR CORRECTION

You should always take particular note of the safety instructions!
For all faults arising the fault must first be rectified and then re-set by switching on again.
Should several faults arise at the same time, these are displayed in the order they arose.
Fault reporting on the
display
F:STL
Fault 101
F:SUCTION SPEED
Fault 102
F: LIGHTING UP
Fault 103
F: RE-HEATING
Fault 104
F: LAMBDA PROBE
Fault 105
-
Fault 109
F:HEC
Fault 110
F:LAMBDA CALIB
Fault 200
F: BOILER TEMP
Fault 300
Betriebsanleitung firestar 15-40 English V2.8
What is the possible cause?
Mains voltage faulty
Safety temperature limiter (STL) has
gone off
Suction blower speed monitoring fault
At lighting up the boiler has not reached the
flue temperature threshold in the prescribed
time
•
Too coarse material used
•
Too moist wood used
•
Burner plate holes blocked
When re-heating the boiler has not reached
the flue temperature threshold in the
prescribed time
•
Too coarse material used
•
Too moist wood used
•
Burner plate holes blocked
Lambda probe is defective or out of line
Boiler temperature above boiler maximum
(90°C)
•
Boiler loaded with too much wood
•
Return flow pump or return flow mixer
defective
•
Buffer storage construction too small
•
Fault with HEC monitoring
•
End switch is still in the same position
•
End switch not reached
Fault in lambda calibration
•
Lambda value is outside the defined
range.
Broken sensor for boiler temperature
Suggestions for rectifying
Let the system cool off and
leave the STL.
Check suction and speed
feedback
Use kindling
Use dry wood
Clean burner plate holes
Use kindling
Use dry wood
Clean burner plate holes
Renew lambda probe and/or
check clamping.
•
Put in less wood
•
Renew return flow pump or
return flow mixer
•
Increase buffer volumes
•
Set the end switch
•
Check the HEC motor or end
switch
•
Carry out calibration again or
renew the lambda probe.
•
Replace the boiler sensor
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