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20140894
GB
Faults - Possible causes - Solutions
9.1
Burner start-up cycle diagnostics
During start-up, indication is according to the Tab. N:
Tab. N
Smoke in flame - dark Bacharach
- Not enough air
Adjust head and fan gate according to Manual
- Nozzle worn or dirty
Replace
- Nozzle filter clogged
Clean or replace
- Erroneous pump pressure
Adjust to between 10 - 14 bar
- Dirty fan
Clean
- Flame stability spiral dirty, loose, or deformed
Clean, tighten in place, or replace
- yellow Bacharach
- Boiler room air vents insufficient
Increase
- Too much air
Adjust head and fan gate according to Manual
Dirty combustion head
- Nozzle or filter dirty
Replace
- Unsuitable nozzle delivery or angle
See Recommended nozzles
- Loose nozzle
Tighten
- Impurities on flame stability spiral
Clean
- Erroneous head adjustment or not enough air
Adjust as per Manual instructions; open gate valve
- Blast tube length unsuited to boiler
Contact boiler manufacturer
FAULT
PROBABLE CAUSE
SUGGESTED REMEDY
Sequences
Colour code
Pre-purging
Ignition phase
Operation, flame ok
Operating with weak flame signal
Electrical supply lower than ~ 170V
Lock-out
Extraneous light
Key:
Off
Yellow
Green
Red
Summary of Contents for PRESS 1G
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