Problem
M
ot
or
D
oe
s
N
ot
R
un
Is Heat
er
Plugged In?
Is
Select
or
Switch Set t
o
“V
ent”?
Plug heat
er in.
Mo
ve
the
Select
or Switch
to
the “
Vent”
Position.
Ye
s
No
Ye
s
Ye
s
Is
Pr
oper V
oltage
Supplied fr
om
Select
or Switch
to
Mo
tor?
R
eplace
Select
or Switch
R
eplace Mo
to
r
Check all Electrical Connections. V
erify
Pr
oper V
oltage with a
Voltage T
est
er
. Contact
a Qualif
ied electrician if
Pr
oper v
oltage is no
t
Present.
No
No
Ye
s
Is
Pr
oper V
oltage
Supplied t
o Select
or
Switch fr
om P
ow
er
Cor
d?
No
Problem
M
ot
or
“
H
um
s”
.
D
oe
s
N
ot
R
un
.
Is F
an Binding
on Housing?
Check f
or Damage t
o Mo
tor and F
an Assembly and Housing.
R
epair or R
eplace as Necessar
y.
Ye
s
R
econnect Wires t
o Capacit
or
.
Def
ectiv
e Capacit
or
.
R
eplace the Mo
to
r.
No
Ye
s
Are Wires
Disconnect
ed
fr
om Capacit
or?
No
VENTILA
TION MODE PR
OBLEMS
23
