Herz BioFire 500 - Not Indicated Faults

Fault reports and their corrections
10
75
10.1 Not indicated faults
Fault
Cause of fault
Fault correction
Boiler output
gradually decreases
Ash/slag on the grate; fly ash container is
full; heat exchanger heavily clogged/ sooted;
inferior quality fuel
Reduce cleaning intervals or clean
manually; empty the fly ash container;
clean heat exchanger
Desired operating
temperature is not
reached
Inferior quality fuel;
previous boiler output higher than current
boiler output;
fuel level too low
Replace fuel if necessary, install larger
boiler; increase fuel level
Ash is emitted from
the chimney
Fly ash container full; fuel contains of
excessive finds or super fines; fan speed too
high; chimney draught to high
Remove fly ash; replace fuel if
necessary or retrofit flue gas de duster;
reduce speeds; retrofit chimney
draught regulator
Deflagrations
Fuel to dry
Fuel to fine
Use fuel according to specifications
Flue gas outlet on
the boiler or exhaust
pipe
• Incorrect layout / double occupancy of the
chimney
• Leaks (defective seals on doors, ash box,
exhaust pipe ...)
• Maintenance interval exceeded, soot
build-up, soiling, sooting in the boiler or
exhaust pipe
• Burning chamber door opened
• Unfavourable draft conditions, lack of air,
low delivery pressure;
• Deflagration, unsuitable fuel
• Design of the chimney according to
the specifications of the assembly /
installation instructions
• Check seals and have defective /
damaged ones replaced by a
specialist.
• Perform maintenance, clean boiler
or flue gas line.
• Only open the combustion chamber
door in the cases recommended
according to the instructions.
• Check air regulation
• Use fuel according to specifications
Flue gas outlet on
the boiler or exhaust
pipe
automatically loaded
system
• Too much fuel in the combustion chamber
• Check and adjust timing of the slide