Instructions / Assembly

ManualsBrandsMiller ManualsHeating, Ventilation, and Air ConditioningMobile Home 75,000 BTU Oil Hot Air Down-Flow Furnace

UNIT MAINTENANCE

WARNING:

Shut off all electrical power to the unit before

performing any maintenance or service on the

system. Failure to comply may result in personal

injury or death.

NOTE: All servicing of this heating appliance other than

the normal maintenance described in this section must

be done by authorized trained service personnel. Do

not attempt any servicing which requires opening of the

control panels.

•

Proper maintenance is most important to achieve the

best performance from the appliance and should be

performed frequently at the beginning of each heating

season.

• Keep the area surounding the unit clean. Keep the unit

clear of obstructions.

Furnace Filter

WARNING:

Never operate the furnace without a ﬁ lter in

place. Accumulating dust in the return air can

build up on internal components, resulting

in loss of efﬁ ciency, equipment damage, and

possible ﬁ re.

• CMF2 Furnaces are supplied with a single air ﬁ lter

when shipped from the factory. It is recommended that

the ﬁ lter be cleaned or replaced monthly. Newly built or

recently renovated homes may require more frequent

changing until the construction dust has minimized.

repklacement ﬁ lters are available at most local retailers.

Inspect ﬁ lters frequently and replace when necessary

with ﬁ lter of same dimensional size

• Filters designed to remove smaller particles such as

pollen, may require additional maintenance.

Blower Compartment

Dirt and lint can create excessive loads on the motor

resulting in higher than normal operating temperatures and

shortened service life. Vacuum or wipe clean the interior

of furnace cabinet. Clean all lint and dust from around the

furnace. It is recommended that the blower compartment

be cleaned of dirt or lint that may have accumulated in

the compartment or on the blower and motor as part of

regular maintenance.

Combustion Air and Venting System

Inspect the combustion air and venting system at the

beginning and end of the heating system for deterioration,

blockage, or damage. Clean the system, if necessary.