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4 32-5037-01
User’s Information
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WARNING
!
• The area around the furnace should be kept free and clear
of flammable vapors, liquids, and material, especially
papers and rags.
• NEVER burn garbage or refuse in the furnace. NEVER try
to ignite oil by tossing burning papers or other material into
the furnace.
• This oil furnace is designed to burn No. 2 distillate fuel
(home heating) oil ONLY. NEVER USE GASOLINE OR A
MIXTURE OF OIL AND GASOLINE.
• DO NOT attempt to make repairs to the furnace yourself!
No Heating –
Insufficient Heating –
Blower operates continuously.
Unusual Noise
A furnace is not a household appliance. It is complex and
requires professional maintenance and repair.
That’s why attempts at “do-it-yourself” repairs on an in-
warranty unit may void the remainder of your warranty.
Other than performing the simple maintenance recom-
mended in this manual, you should not attempt to make any
adjustments to your furnace. Your dealer will be able to take
The Problem Solver
care of any questions or problems you may have. A periodic
inspection of your furnace should be made by a qualified
servicer at the start of each heating season.
Keep your furnace looking like new for years.
Clean the enamel finish of your furnace with a damp cloth
and a mild soap. For stubborn grease spots, use a mild
household detergent. Lacquer thinner or other synthetic
solvents may damage the finish.
Save time and money. Before calling for service, check the following:
Problem Possible Trouble Possible Remedy
1. Thermostat set incorrectly.
2. Blown fuse or tripped
circuit breaker.
3. Defective component.
4. Burner does not ignite.
5. Main fuel oil valve turned off.
6. Lockout
1.Dirty air filters.
2.Blocked supply or return
registers.
1.Adjust thermostat. See operating instructions.
2.Replace or reset protective device or call for
servicer.
3.If your unit still does not operate call for Ser-
vice.
4.Call servicer.
5.Have fuel oil supplier check.
6.Adjust thermostat to lowest temperature
Setting. - Turn thermostat OFF.
- Press reset button on burner one time.
- Turn thermostat ON.
- Adjust temperature to desired setting.
DO NOT ATTEMPT TO RESET BURNER
MORE THAN 3 TIMES! Call for Service.
1.Clean or replace filters.
2.Make sure registers are open and
No obstacles blocking off the air.
Call your servicer
FILTER TABLE A
REQUIRED FILTERS
FURNACE MODEL FILTER QUANTITY & SIZE
*HV1MO87 1 - 16" X 25" X 1"
*LF1MO87 2 - 10" X 20" X 1"
*LR1MO87 2 - 10" X 20" X 1"
*DF1MO87 NOT SUPPLIED
Lowboy Furnace Filters
The Lowboy furnace typically uses a cleanable-type air filter
which may be located within the furnace blower compart-
ment or in a remotely mounted filter grill. Refer to Filter
Table A for the correct filter size.
To replace filters located inside the blower compartment:
1. Turn off all power to the furnace before removing the
blower door.
2. Remove blower access door and remove the soiled filter(s).
3. Replace the filter(s) in the same manner as removed
making sure that the filter(s) is secured in place.
4. Replace blower access door.
4. Restore power to furnace.
Front flue model shown