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All installations and services must be performed by qualified service personnel.
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D. INSPECTING THE VENTING SYSTEM
The venting system should be inspected during the annual maintenance check-up or
during each subsequent service call.
Check all vent pipes for restrictions due to soot, or carbon build-up, as well as foreign
matter, or any materials, that cause the venting system to restrict the proper venting of
combustion products. If a restriction is found, the flue vent must be cleaned or
replaced to ensure proper venting.
Vent pipes should also be inspected for any signs of corrosion, deterioration, or leakage
that may cause combustion by-products to infiltrate the home or indoor environment.
If signs of corrosion, deterioration, or leakage are evident, the vent pipe must be
replaced with a properly sized, agency-approved, vent pipe.
E. GASKETS/SEALING MATERIALS
Inspect all visible gaskets for signs of degradation, especially any seals which were
removed as part of the inspection. Replace any suspect gaskets.
F. HEAT EXCHANGER
Inspect for corrosion, pitting, warpage, deterioration, carbon build-up, and loose gaskets
in the flue pipe, burner box, and accessible areas of the heat exchanger.
G. HOUSE AIR BLOWER
Check and clean the blower wheel, housing, and compartment with a vacuum. Check
the motor nameplate and follow the motor manufacturers instructions for lubrication, if
required.
IMPORTANT:
Some motors are permanently lubricated and should not be oiled.
See motor nameplate for specific instructions.
H. EXTENDED SHUTDOWN
If this furnace is shut down or off for an extended period of time, several steps can be
taken to help insure a smooth and reliable start.
ON SHUT DOWN:
1. Close the gas supply shutoff valve(s).
2. Turn the furnace power switch “off” and disconnect electrical power to the unit.