Troubleshooting - Mi-T-M Corporation MH-0150-NM10 Manual Del Operador

SYMPTOM
Fan does not turn when electricity
is connected
Heater will not fire (ignite)
Heater stops running by itself
Natural Gas Portable Heater Manual

TROUBLESHOOTING

PROBABLE CAUSE
1. No electric power to heater
2. Blades of fan in contact with
heater housing
3. Fan blades bent
4. Fan motor defective
1. No spark at igniter
2. Incorrect spark gap
3. Corroded electrode
1. Temperature inside heater is
too high, causing thermal switch
to shut down operation
2. Damaged control valve
3. Dust or debris accumulated in
heater
REMEDY
1. Check current at outlet. If volt-
age is correct, inspect extension
and power cords for cuts, frays or
breaks
2. Check housing for damage. Be
sure there ar no dents in the hous-
ing obstructing the fan
3. Straighten all fan blades
4. Replace Motor Assembly
1. Inspect igniter wire. Re-attach,
or tighten if loose. Inspect Spark
module, and replace if necessary.
Inspect all other electrical compo-
nents
2. Set plug gap to 0.14" (3.5mm)
3. Replace spark plug (Multi-
Bracket Assembly)
1. If heater input or output is
restricted, the inside temperature
can become too hot. Keep the
areas in front and behind heater
clear of obstructions
2. Replace control valve (Valve
Assembly)
3. Clean inside of heater
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