Section M: Troubleshooting Guide - Monitor M2200 Owner's Manual

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