Specifications
SECTION
I
TROUBLESHOOTING GUIDE
Should symptoms appear
during
the
operation
of
your heater, refer
to the
chart below.
If you are
unable
to
restore
normal operation, contact your
MPI
dealer
for
service.
SYMPTOM
CAUSE
REMEDY
Heater
does
not go on
with
operation switch.
Heater
does
not
ignite.
Heater
extinguishes after
lighting.
(Note
2)
Timer
is in
Auto.
AC
cord
is
disconnected from
wall
outlet. Power failure.
Air
in gas
pipe.
Flue
pipe obstructed.
Louver
obstructed.
Press
Auto
Button
again.
Check
plug
and
power source.
Reset
circuit breaker.
Purge
air. Repeat starting
procedure.
Clear
obstruction.
Erratic
changes
in
room
temperature. (Slight
differences
in
room
temperature
are
normal.)
Poor
location
of
heat sensor.
Poor
air
movement.
Relocate
the
sensor.
Make
sure clearances
are
kept around
unit.
Add
room fans
to
better circulate
air
throughout area.
Automatic timer does
not
start
heater.
Operation switch
is not
in
the
"ON" position.
Timer
is in
Manual.
Timer improperly
programmed.
Power
interruption.
Depress
operation
button
to
"ON"
position.
Press
Auto Button.
See
"Programming
for
Automatic
Operation" Section
J.
See
"Loss
of
Power", Section
K.
Poor
flame, sounds
of
combustion, soot
at the
rear
of the
heater.
Loose flue pipe.
Allow
heater
to
cool completely;
tighten
all
connections.
Soot
on
inside
of
burner
window
or
exhaust ports
of
flue
pipe.
Obstruction
of
combustion
air
intake system
or
combustion
fan
failure.
Inspect
air
intake system
and air
supply elbow
for
blockage. Clean with
a
brush,
if
necessary,
and
carefully
reconnect.
Heater
switches from
automatic
to
manual operation:
display window shows
88: 88.
Power
interruption; automatic reset.
See
"Loss
of
Power",
Section
K.
NOTE:
Several
of the
symptoms mentioned above
may
also
be
signs
that
your unit
is due for
routine
maintenance,
especially
if it is
several years
old. Contact your Monitor
dealer
for an
appointment.
Note
2: The GF is
equipped with
a
blocked vent shut-off system
to
safely shut
off the
unit
if the
vent becomes blocked
with
snow
or
other obstruction.
In the
event that
the GF
unit
fails
to
operate, contact
an
authorized service
technician
or a
qualified service agency.
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