Section
3:
Operation
mP4:
Cheek
tor
Cause
of
Overheating
I
STER
Turn Monitor
OFF
NOTE:
Overheating
is
usually
caused
by
objects
STEP2
Unplug hater
that
impede
tree
air
circulation.
STEP3:
Remove
louver assembly
-4:
Remove
front
cover
Look
for debris and other obstructions at front
of
heater, at Circulation Fan at rear
of
the
heater, and
NOTE
As
the
~knt
Cover
of
the
Monitor
441
is
at
Flue
Pipe
tip ourside dwelling.
connected-to the Printed Circuit Board
by
Lead
Wires, pljll the Front
Cover
to
the front
STEPS:
Remove
Louver
hmMy
side slightly and remove the Connector
of
the
Lead
Wires
from
the
Printed Circuit
m.
~l&n
eater
bierior
Board,
and then, remove
the
Front
Cover.
STEP^
Locate
and replace
Ws)
BEFORE
PROCEEDING
TO
CLEAN
HEATER,
BE
SURE
THAT
HEATER
INTERIOR
IS
COOL
ENOUGH
TO
TOUCH.
With
a
clean, lint-free. damp
rag
or
other
appropriate
cleaning material, wipe
up
all
dust
dirt and debris
from exterior
of
cabinet, including exterior
of
Com-
bustion Chamber and Heat Exchanger.
STEP6:
Reattach
front cover
(In
case
of
the
Monitor
49%
be
sure
that
'
the
connector
is
wnnactsd
to
the
printed
circuit board)
STEP7:
Reattad
louver assarnbiy
STEPB:
Plug
heater
power wrd
into
wall
outlet
m.
Tum
Mmbr ON
M
ReplacsLouver
Aswmbiy
STEPlO:
Reprogram
heater
STEP&
Reeonnee!
Monitor Heater Pwer Plug
to
-
mmm
Aut#natic
opemtion
cycb
the
Wail
O'WL
appliabi8)
STEP9
Turn
Heater
ON
SEPl2
.Sdect
Automatic operation
(if
appii
STEPIO:
Reprogram
Heater
Microprochswr
-1
m.
Sdsct
Mode
of
operation
CAm
I
atter
the
camplolion
of
maww
pmcmdura,
tht
heater
overheats
again,
something
hi
wrong
!
Do
not
operate
heater Mtil
Plob-
km
has
been
diagnosed
and
cor
rectsd
3-W
RECOVERY
RlOM
BLOWN
NSE
All
elechical
components
of
the
Monitor heater
are
protected
against
pawer
overloads
and
electrical
matfundions by
two
2-p
fuses
and
a
lGamp
fuse.
Should
fuse
blow,
the
~BCWW
Drocedm
is
outlined below:
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