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SECTION 13: SERVICING
29 of 42
Burner Observation
Window
Make sure it is clean and free of cracks or holes.
Clean and replace as required.
Flue Blower Scroll, Wheel
and Motor
Compressed air or a vacuum cleaner may be used to clean dust and dirt.
Inshot Burners and
Orifices
Clear obstructions (even spider webs will cause problems).
Carefully remove any dust and debris from the burner.
Direct-Spark Igniter Replace if there are cracked ceramics, excessive carbon residue, or erosion
of the electrode.
The electrode gap should be 1/8" (3.2 mm).
Thermostat There should be no exposed wire or damage to the device or wiring.
See Page 19, Section 10.
Suspension Points Make sure the heater is hanging securely.
Look for signs of wear on the suspension materials or ceiling.
See Page 11, Figure 4 and Page 12, Figure 5.
Silicone Tubing Ensure tight, secure fit on all pressure fittings at pressure switch,
burner partition, and blower outlet.
Gas Valve Verify that cap covering pressure regulator adjustment screw is secure and
has not been tampered with.
Verify all wiring connections.
Condensate Drain
(when installed)
Flush drain and clear any obstructions.
Ductwork Consult an indoor air quality professional for proper cleaning procedures
Air Circulation Blower For a complete inspection, refer the manufacturers Installation, Operation and
Service manual.
Wall Tag If wall tag is present, make sure it is legible and accurate. Please contact
Roberts-Gordon LLC or your ROBERTS-GORDON
®
independent distributor if
you need a wall tag. See Page 4, Section 2.1.