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3. Periodically observe the main burner flame to assure it is burning with a hard blue flame with
well defined burner ports. (Fig. 7-4) If flame
appears yellow yellow or burner has a lazy flame,
shut furnace down. It is possible that burner
needs cleaning or replaced. If excessive rust and
corrosion are present on burner surface, the burner
must be thoroughly cleaned or replaced. The
burner may be cleaned using a steel wire brush
and blown clean using high compression air.
Contact a qualified service person for assistance.
NOTE: To properly observe burner operation, the
furnace must be removed. This should only
be done by your dealer or a qualified service agency.
4. Keep furnace clean. More frequent cleaning may be required due to excessive lint from
carpeting, bedding material, etc. It is imperative that control compartments, burners and
circulating air passageways of the appliance be kept clean.
5. The motor is permanently lubricated and requires no oiling.
6. Keep the furnace area clear of any combustible materials, gasoline or other flammable vapor
and liquids.
7. Before operating furnace, checkthe location of the furnace vent to make sure it will not be
blocked by the opening of any door on the trailer. If it can be blocked, do not operate the
furnace with the door open.
8. Do not restrict the flow of combustion air or the warm air circulation to the furnace. To do
so could cause personal injury and/or death.
9. Never operate the furnace if you smell gas. Do not assume that the smell of gas in your park
trailer is normal. Any time you detect the odor of gas, it is to be considered life threatening
and corrected immediately. Extinguish any open flames including cigarettes and evacuate all
persons from the trailer. Shut off gas supply at LP gas bottle.
10. Immediately shut furnace down and cc all a service agency if furnace cycles erratically or
delays on ignition.
I
WARNING: If overheating occurs, or the gas supply fails to shut off, shut off the
manual gas valve to the appliance before shutting off the electrical supply.
11. Never attempt to repair damaged parts. Always have them replaced by a qualified service
agency.
12. Never attempt to repair the furnace yourself. Seekthe help of a qualified service person.
13. Never restrict the ducting of the furnace. To do so could cause improper furnace operation.
14. Do not install air boosters in the ducting system. Such devices will cause the furnace to cycle
on limit and to have erratic sail switch operation.
15. Clothing or other flammable material must not be placed on or near the appliance.
16. Always follow the Operating Instructions. Do not deviate from the step-by-step procedures.
17. Do not use this appliance if any part has been submerged under water. Immediately call a
qualified service technician to inspect the appliance and to replace any part of the control
system and any gas control that has been submerged under water.
18. When considering add-on rooms, porch or patio, attention must be given to the venting of
your furnace. For your safety, do not terminate furnace vent inside add-on rooms, screen
porch or onto patios. Doing so will result in products of combustion being vented into the
room or occupied areas.
86
Cove Owner’s Manual
CORRECT FLAME
INCORRECT FLAME
SHARP BLUE
FLAME
YELLOW
FLAME
Fig. 7-4