Check Control - BENSON 30 Installation And Operating Manual

Burner lights
on start gas
but fails to
establish
mail flame
Burner starts
but excess
temperature
shuts down
the burner
on overheat
Check gas
supply
Check flame
probe
Check
controls
Insufficient
air passing
over heat
exchanger
High return
(inlet) air
temperature
Excess air
Low gas
pressure
Signal
Position
Check
burner
Check
control
Check air to
inlet is not
restricted
Resistance
too high
Fan belt
slipping
Impellor
slipping
Check for
warm air
short circuit
to air inlet
Check that
flue gas CO
is as advised
Adjust damper
to suit
Check inlet
gas pressure
Check main
burner gas
pressure
Check main
burner gas
pressure
Check inlet
gas pressure
Remove
obstruction.
Clean filter
Check outlet
grilles are open
Check nozzles
are open
Adjust and or
replace belts
Adjust and or
replace belts
Reset nozzles
away from
adjacent walls
Doc No. 20-45-159 Page 57 of 60