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All installations and services must be performed by qualified service personnel.
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VIII. DEALER MAINTENANCE
A qualified heating contractor should perform the following maintenance
procedures at the beginning of each heating season. Correct any deficiencies at
once.
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? WARNING: Personal injury or property damage could result from repair or
service of this furnace by anyone other than a qualified heating contractor. Only
the homeowner/user routine maintenance described in the Users Information
Manual may be performed by the user.
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? WARNING: To avoid injury from moving parts, shut off the power to the
furnace before removing blower compartment door.
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? CAUTION: Label wires prior to disconnection when servicing controls. Wiring
errors can cause improper and dangerous operation.
A. ELECTRICAL:
1. Check all wiring for loose connections and any signs of damage or unusual wear.
2. Check for correct voltage at the furnace when operating.
3. Check amp-draw on blower motor and inducer motor to assure they are not
exceeding nameplate amp rating.
4. Check for correct operation and proper settings (if manually adjustable) of all
controls.
Shut off gas and disconnect power before continuing.
B. BURNERS
If it appears that material is accumulating in the burner box, the burner box cover can
be removed and the box and burners can be vacuumed. If necessary, the burners
assembly can be removed by taking out the two screws/one on each bracket on top of
burner box and removing the burner manifold assembly. Assembly must be pulled &
tilted down in order to remove from box. If necessary, the individual tubes can be
cleaned out using compressed air to blow out the individual tubes. Care must be taken
not to damage the igniter.
C. INDUCER BLOWER ASSEMBLY
Inspect the pressure switch and tubing connections and inspect the blower/assembly
for warpage, deterioration and carbon or other build-up. If necessary, clean the
accessible portions of the housing and blower with a damp cloth. Vacuum to remove
any lint or dust from the motor assembly.