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Section 3 – Troubleshooting
NOTE: High O2 is only active when the boiler is in running mode
If you still see glows in the burner tube, press »START« and the boiler will restart as
described in Section 2.4, soft start. In case the fire should be extinguished, the fire
must be started again as described in section 2.2 “Taking fuel forward to the burner
tube.”
3.6 Lambda offs.
If the error “Lambda offs.” appears when calibrating the lambda probe, it is because the
measured O2% deviates more than ± 4% from 21% which is the amount of oxygen
(O2) in clean air. The lambda probe can only be calibrated in the area from 17 – 25%.
Try the function “Reset all” before calibrating.
Causes:
The probe is not exposed to absolutely clean atmospheric air
The probe has to be cleaned (use a wire brush gently)
The probe is defect
3.7 Power cut
In case of power cut, the boiler will automatically restart, though depending upon length
of the power cut.
Should the boiler temperature have dropped more than 15ºC during power cut, the
boiler will not restart, but display the error “Low temp.”, see section 3.3 Low temp.
3.8 Sprinkler system
Should the fuel back-burn into the auger channel and the temperature exceed 95 ºC
the sprinkler might start and spray water under pressure down into the auger channel
and put the fire out (The boiler will continue as normal, if possible.)
Causes:
Fuel store lid in not tight (Install a new gasket)
,
The fuel store lid was left open (This lid must never be open during use)
.
Too much draft in chimney (Draft stabiliser might be installed into chimney)
If the sprinkler system has been activated you must check that the sprinkler valve is
closing tight again. Dismount the hose on the sprinkler valve and check whether it
drips.
Please contact your installer, should you continuously have burn-back problems
