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Faults - Possible causes - Solutions
(1)
When the burner does not fire or comes to a halt following a
fault, the symbol which appears on control box 24)(Fig. 4 at
page 12) indicates the type of problem.
(2)
The fuse is located in the rear part of the control box
24)(Fig. 4 at page 12). A pull-out fuse is also available as a
spare part which can be fitted after breaking the tang on the
panel which holds it in place.
The burner does not pass to
2nd stage
Control device TR does not close Adjust or replace
Defective control box Replace
Uneven fuel supply Check if cause is in pump or fuel supply system Feed burner from tank located near burner
Internally rusted pump Water in tank Suck water from tank bottom with separate pump
Noisy pump, unstable pres-
sure
Air has entered the suction line Tighten connectors
- Depression value too high (higher than 35 cm Hg):
Tank/burner height difference too great Feed burner with loop circuit
Piping diameter too small Increase
Suction filters clogged Clean
Suction valves closed Open
Paraffin solidified due to low temperature Add additive to light oil
Pump unprimes after pro-
longed pause
Return pipe not immersed in fuel Bring to same height as suction pipe
Air enters suction piping Tighten connectors
Pump leaks gas oil Leakage from sealing organ Replace pump
Smoke in flame - dark Bach-
arach
- yellow Bacharach
Not enough air Adjust head and fan gate
Nozzle worn or dirty Replace
Nozzle filter clogged Clean or replace
Erroneous pump pressure Adjust
Flame stability disk dirty, loose, or deformed Clean, tighten in place, or replace
Boiler room air vents insufficient Increase
Too much air Adjust head and fan gate
Dirty combustion head Nozzle or filter dirty Replace
Unsuitable nozzle delivery or angle See recommended nozzles
Loose nozzle Tighten
Impurities on flame stability disk Clean
Erroneous head adjustment or not enough air Adjust, open air damper
Blast tube length unsuited to boiler Contact boiler manufacturer
During operation, the burner
stops in lock out
Dirty or defective photocell Clean or replace
SYMBOL
(1)
FAULT PROBABLE CAUSE SUGGESTED REMEDY
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