Invoice Summary – 2014 York Modulating Furnace Call type: No heat – ignition failure Brand: York (Modulating) Work Performed: - Diagnosed ignition failure and found the hot surface igniter faulty. - Reviewed pricing with the client and replaced the igniter. - Tested operation and forced furnace into high fire for combustion analysis. - Combustion readings showed dangerously elevated CO levels. - Observed active flame rollout — flames coming out the top left side of the burner box. - Flame rollout, elevated CO, internal water damage, and installation slope issues confirm a heat exchanger failure. - Noted rust and water behind the furnace, consistent with internal leakage from the failed heat exchanger. - To restore proper operation, the furnace would require: • Replacement of both primary and secondary heat exchangers • Warranty verification • Correcting the furnace slope Results: - Furnace has confirmed heat exchanger failure and is unsafe to operate. - Furnace tagged unsafe an