Troubleshooting - Procom MNSD300HGA Owner's Operation And Installation Manual

CLEANING BURNER PILOT AIR INLET HOLE
The primary air inlet hole allows the proper
amount of air to mix with the gas. This pro-
vides a clean burning flame. Keep this hole
clear of dust, dirt and lint. Clean this air inlet
hole prior to each heating season. A blocked
air hole will create soot. We recommend that
you clean the unit every three months during
operation and have heater inspected yearly
by a qualified service person.
We also recommend that you keep the burner
tube and pilot assembly clean and free of dust
and dirt. To clean these parts we recommend
using compressed air no greater than 30 PSl.
Your local computer store, hardware store,
or home center may carry compressed air in
a can. You can use a vacuum cleaner in the
blow position. If using compressed air in a
can, please follow the directions on the can.
If you don't follow directions on the can, you
could damage the pilot assembly.
1. Shut off the unit, including the pilot. Allow
the unit to cool for at least thirty minutes.
2. Inspect burner and pilot for dust and dirt.
Air Passageways
Use a vacuum cleaner or pressurized air to
clean.
WARNING: If you smell gas:
• Shut off gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your
building.
• Immediately call your gas supplier from a neighbor's phone. Fol-
low the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
WARNING: Only a qualified service technician should service
and repair heater.
IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning sup-
plies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc.,
create fumes. These fumes may mix with combustion air and create odors.
Note: All troubleshooting items are listed in order of operation.
20
CARE AND MAINTENANCE
CABINET

TROUBLESHOOTING

www.usaprocom.com
3. Blow air across the ports/slots and holes
in the burner.
4. Never insert objects into the pilot tube.
Clean the pilot assembly also. A yellow tip on
the pilot flame indicates dust and dirt in the
pilot assembly. There is a small pilot air inlet
about 2" from where the pilot flame comes out
of the pilot assembly (see Figure 26). With
the unit off, lightly blow air through the air
inlet. You may blow through a drinking straw
if compressed air is not available.
Ignitor
Natural Gas
Electrode
Burner
Pilot Air
Inlet Hole
Figure 26 - Pilot Inlet Air Hole
Exterior
• Use a soft cloth dampened with a mild soap
and water mixture.
• Wipe the cabinet to remove dust.
Thermocouple
Propane/LP
Gas Burner
Pilot Air Inlet Hole
200233-01B