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Repair Parts List

The following repair parts are available through Lennox dealers. When ordering parts, include the complete furnace model
number listed on the CSA International nameplate −− Example: G43UF−24B−045−2. 

All service must be done by a licensed

professional installer (or equivalent), a service agency, or the gas supplier.

Cabinet Parts

Upper access panel
Blower access panel
Top Cap

Control Panel Parts

Transformer
Integrated control
Door interlock switch

Blower Parts

Blower wheel
Motor
Motor mounting frame
Motor capacitor
Blower housing cutoff plate

Heating Parts

Flame Sensor
Heat exchanger assembly
Gas manifold
Combustion air inducer
Gas valve
Main burner cluster
Main burner orifices
Pressure switch
Ignitor
Primary limit control
Secondary limit
Flame rollout switches
Combustion air inducer auxiliary limit

Содержание G43UF SERIES

Страница 1: ...formed by a qualified installer service agency or the gas supplier D Do not try to light any appliance D Do not touch any electrical switch do not use any phone in your building D Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions D If you cannot reach your gas supplier call the fire department D Leave the building immediately GAS FURNACE FIRE OR EXPL...

Страница 2: ...this is not possible the water supply to the house should be shut off and the pipes should be drained This will prevent problems associ ated with a NO HEAT condition frozen pipes etc CAUTION Before attempting to perform any service or mainte nance turn the electrical power to unit OFF at the disconnect switch WARNING Product contains fiberglass wool Disturbing the insulation in this product during...

Страница 3: ...cts into the combustion air These products can cause furnace corrosion 5 DO NOT draw return air from a room where this fur nace or any other gas appliance ie a water heat er is installed When return air is drawn from a room a negative pressure is created in the room If a gas ap pliance is operating in a room with negative pressure the flue products can be pulled back down the vent pipe and into th...

Страница 4: ...pped with an ignition device which automatically lights the burners Do not try to light the burners by hand 5 Remove the upper access panel 6 White Rodgers 36G Gas Valve Move gas valve switch to OFF See figure 2 for the White Rodgers 36G valve Honeywell VR8205 Gas Valve Move switch on gas valve to OFF See figure 3 for Honeywell VR8205 valve 7 Wait five minutes to clear out any gas If you then smel...

Страница 5: ...nnually before heating season inspect furnace venting system vent cap heat exchanger and burners for corro sion deterioration or deposits of debris Remove any ob structions Inspect the furnace for obvious signs of deterioration Inspect the furnace venting system to make sure it is in place physically sound and without holes corrosion or blockage Vent pipe must be clear and free of obstructions and...

Страница 6: ...If you suffer from flu like symp toms that are exaggerated at home but seem to sub side while you are away from the house exposure to carbon monoxide could be the cause Your vigilance may pay off in early detection of a problem before either personal injury or property damage occurs Do not hesitate to contact a qualified service technician as an investment in your well being Planned Service You sh...

Страница 7: ...or the gas supplier Cabinet Parts Upper access panel Blower access panel Top Cap Control Panel Parts Transformer Integrated control Door interlock switch Blower Parts Blower wheel Motor Motor mounting frame Motor capacitor Blower housing cutoff plate Heating Parts Flame Sensor Heat exchanger assembly Gas manifold Combustion air inducer Gas valve Main burner cluster Main burner orifices Pressure sw...

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