L.B. White I-5 Infraconic - Manual (Page 18)

Are Inject
or Body
,
V
enturi T
ube o
t
Filt
er Dir
ty?
18
Problem 1
Inner Combustion Cone Will Not Light
Is
Thermostatic
Head Set t
o
Maximum?
Is the
Burner Orif
ice
Plugged ?
Turn Thermostat
Up t
o
Its
Maximum Setpoint.
R
emo
v
e
the Burner Orif
ice.
Clean with a Sof
t Brush or
Com
pressed air
.
Ye
s
No
Ye
s
Ye
s
Ye
s
Is the Inner
Combustion Cone
Plugged?
Is There Air or
a Block
age in the
Gas Hose or Gas Piping?
R
emo
v
e
Block
age with Com
pressed
Air or R
eplace the Gas Hose or Pipe
Section. Bleed Of
f an
y Air fr
om the
Gas Line. Clean the Heat
er
.
Clean these Com
ponents.
No No No
Is Pr
oper
Gas Pressure
Supplied t
o
the
Zone Panel or
Heat
er?
Pr
o
vide 5 PSIG
Gas Pressure.
Ye
s
No
Are all F
uel
Supply V
alv
es t
o
Heat
er Open?
Open All F
uel
Supply V
alv
es.
Ye
s
No
Def
ectiv
e
Saf
ety Contr
ol V
alv
e.
R
eplace the Saf
ety
Contr
ol V
alv
e.
Ye
s
No
Heater Backflashes Gas Through IAir Inlet. Problem 2
Is Inner
Cone Crack
ed
or Damaged?
R
eplace Combustion Cones.
Ye
s
No
Are
Inject
or
Body
, Burner
Orif
ice, V
enturi T
ube,
or Inner Cone Par
tially
Plugged with
Debris?
Clean These Areas.
Is Pr
oper
Gas Pressure
Being Supplied t
o
the Heat
er?
Check f
or Pr
oper
Gas Pressure.
Pr
oper Pressure at
High Heat Should
R
ead 5 PSIG.
Ye
s
No
Combustion Cone Kits Par
t
N
umber
22
1
8
8