Lennox G43UF - Manuals

Page 2 G43UF Parts Identification DURALOK TM HEAT EXCHANGER ASSEMBLY UPPER ACCESS PANEL BURNERS BLOWER MOTOR CABINET CONTROL BOX GAS VALVE AND MANIFOLD COMBUSTION AIR PROVING (PRESSURE) SWITCH COMBUSTION AIR INDUCER BLOWER ACCESS PANEL FLUE COLLAR TOP CAP INTEGRATED CONTROL BOARD FIGURE 1 WARNING Pr...

Page 3 WARNING Do not use this furnace if any part has been under-water. A flood−damaged furnace is extremely dan-gerous. Attempts to use the furnace can result infire or explosion. Immediately call a qualified ser-vice technician to inspect the furnace and to replaceall gas controls, control system...

Page 4 The gas valve on the G43UF may be equipped with eithera gas control knob or gas control lever. Use only yourhand to push the lever or turn the gas control knob. Neveruse tools. If the the lever will not move or the knob will notpush in or turn by hand, do not try to repair it. Call a quali-fi...