Specifications
MONITOR HEATING SYSTEMS
Section
3:
Operation
STEP4:
Check
for
Cause
of
Overheating
NOTE: Overheating
is
usually caused
by
objects
that
impede free
air
circulation.
Look
for
debris
and
other obstructions
at
front
of
heater,
at
Circulation
Fan at
rear
of the
heater,
and
at
Flue
Pipe
tip
outside dwelling.
STEPS:
Remove Front Cover
and
Louver
As-
sembly.
STEPS:
Clean Heater
Interior.
WARNING:
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.
STEP7: Replace Louver Assembly
and
Front
Cover.
STEPS:
Reconnect Monitor Heater
Power
Plug
to
the
Wall
Outlet
STEP9: Turn Heater
ON
STEP10:
Reprogram Heater Microprocessor
STEP11:
Select Mode
of
Operation
CAUTION:
If
after
the
completion
of
recovery
procedure,
the
heater overheats
again, something
is
wrong/
Do
not
operate heater until
prob-
lem has
been diagnosed
and cor
reded
3-16
RECOVERY
FROM
BLOWN
FUSE
MOVE
TO
TOP OF
NEXT
COLUMN
All
electrical
components
of the
Monitor heater pro-
tected against power overloads
and
electrical mal-
functions
by a
2-amp fuses
and a
10-amp
fuse.
Should
a
fuse
blow,
the
recovery procedure
in
out-
lined
below:
STEP1: Turn Monitor
OFF
STEP2:
Unplug
heater
STEPS:
Remove Front Cover.
STEP4: Remove Louver Assembly.
STEPS:
Locate
and
replace
fuse(s)
Replace fuse
with same type
and
rating never over-
size fuse.
STEP6:
Reattach
front cover
(Be
sure that
the
connector
is
connec-
ted to the
printed
circuit
board.)
STEP7: Reattach Louver Assembly
and
Front
Cover.
STEPS:
Plug heater power cord into wall outlet.
STEPS:
Turn
Monitor
ON
STEP10: Reprogram heater
STEP11:
Program Automatic operation cycles
(if
applicable)
STEP12:
Select
Automatic
operation
(if
applica-
ble)
Should
fuse blow again,
unit
should
be
checked
for
shorted component failure,
or PWB
failure.
37