Carrier model 58sta135 will not ignite even after replacing igniter, still flashing code34 any ideas?
KC13
Nov 17, 2009, 04:24 AM
Is gas supply "ON"? Gas control knob/switch "ON"? Do you hear "hiss" of gas from manifold when furnace attempts to ignite? If you answered "YES" to all above, remove and clean main burners.