Mi-T-M HEO Series, Operating Instructions Manual

Page: 28 / 94

28 Operator's Manual
SYMPTOM PROBABLE CAUSE REMEDY
trOuBLesHOOting
Repair or replace.
Check switch position or replace.
Check switch position or replace.
Contact Customer Service.
Refuel.
Remove, clean or replace tube.
Open trigger gun for pressure.
Pressure should be over 250 PSI/
5 Bar to allow burner to come on.
(Pressure should be checked by an
authorized service technician.)
Contact Customer Service.
Unit will automatically reignite when
cool.
Replace.
Drain or replace as necessary.
Tighten all fuel intake connections.
Eliminate leaks in intake line.
Check pressure, replace if needed.
(Pressure should be checked by an
authorized service technician.)
Replace.
Adjust as explained on page 24.
Replace.
Contact Customer Service.
Replace.
Verify burner switch is in the "ON"
position.
May occur in cool, humid conditions.
(See pg. 21, "IMPORTANT" notation.)
Replace.
Water flows from the nozzle when
the trigger gun is locked in OFF
position.
Burner will not ignite.
Water is leaking under heat
exchanger coil.
Trigger gun is malfunctioning.
Switch is defective.
Adjustable Thermostat is defective
or in the "Off" position.
No voltage.
Out of fuel.
Fuel tank inlet tube screen ob-
structed.
Trigger gun is closed.
Pressure switch override.
Fuel pickup screen is obstructed.
Temperature above thermostat
setting.
Flexible coupler broken.
Dirty or clogged fuel filter.
Fuel pump sucking air.
Fuel pump inoperative.
Dirty or clogged fuel nozzle.
Improper burner air adjustment.
Ignition transformer failure.
Ignition electrodes not set properly,
damaged or worn.
Fuel solenoid valve failure.
High PSI mode.
Condensation.
Ruptured heat exchanger coil.