Specifications
SECTION
M
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
extinguishes after
lighting.
Erratic
changes
in
room
temperature. (Slight
differences
in
room
temperature
are
normal.)
Timer
is in
Auto.
AC
cord
is
disconnected
from
wall
outlet.
Power
failure.
Out
of
fuel.
Igniter Failure.
Water
in
fuel.
Clogged
fuel strainer.
Air
pocket
in
fuel line.
Out of
fuel.
Poor
location
of
heat sensor.
Poor
air
movement.
Automatic
timer does
not
start
heater.
Operation switch
is not
in the
"ON" position.
Timer
is in
Manual.
Timer
improperly
programmed.
Power
interruption.
Flame does
not
reach
normal
size.
Heater
is not
level.
Press
Auto Button again.
Check
plug
and
power source.
Reset
circuit
breaker.
Press
the
fuel
set
lever
at the
lower
right hand side
of the
cabinet. Check
"Empty"
light.
If
illuminated, refuel heater.
If
separate
tank
is
used "Empty" light
does
not
operate.
Call your
MPI
Dealer
for
Inspection
and/or
Replacement.
Refill
with fresh kerosene. Section
L.
Note:
If
strainer
is
severely clogged,
contact
your
Monitor
dealer
to
check
and
clean
the
inside
of
constant level
valve
and
pump
screen.
Clean fuel strainer.
See
"Care
of the
heater"
Section
L.
Press
fuel
set
lever
on
lower right hand
side
of the
cabinet
and
release slowly
2 or 3
times.
See
"Empty Fuel Tank" Section
E.
Relocate
the
sensor.
Make
sure clearances
are
kept around
unit.
Add
room fans
to
better
circulate
air
throughout area.
Depress
operation button
to
"ON"
position.
Press
Auto
Button.
See
"Programming
for
Automatic
Opearation"
Section
J.
See
"Loss
of
Power", Section
K.
Check level.
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.
27