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Premier Ductable
Heater
www.lbwhite.com
Owner’s Manual •
Premier 350DF 2.0
28
Air p
ressure
status light is not
o
n.
Does fan
motor start?
Yes
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Does
ignition
control send proper
voltage to motor
from terminal IND
on control?
Defective
ignition
control. Replace
control.
Repair or replace
as
ne
eded.
Are wiring
and
e
lectrical
connections
good?
Is fan binding?
Repair
o
r r
eplace
Is fan loose on
motor shaft?
Tighten the fan
set
screw(s)
Are 24 volts
received at the air pressure switch from terminal PS1 on controller when motor
starts?
Are 24 volts returned
from air pressure
switch to terminal PS2
on controller?
Verify 24 volts are
received
a
t t
he
indicator
light.
If
so
, r
eplace
light.
Check
air
pressure
switch for continuity.
Replace
sw
itch.
Repair or replace
wires
or
connections
as
ne
eded.
Are wires
and
e
lectrical
connections
from
air pressure switch
good?
Are wires
and
e
lectrical
connections
good?
Are 24 volt present at the PSI
terminal
on
the controller?
Repair or
replace wires or
connections.
Replace
ignition
control
Replace
fan
m
otor.