Discussion Starter · #1 ·
My Carrier 58 MCA has an abnormally long igniter warm-up time. Here's what happens: The thermostat calls for heat - the furnace starts working, churning, sometimes for 30 minutes without a call for gas...then it calls for gas, it lights, hot air blows for 2-3 minutes then shuts off. The furnace immediately starts working again, churning again for a short time, then, it calls for gas, it lights, and hot air blows for as long as it takes to give the thermostat what it wants. This is a high efficiency set-up, it just seems terribly inefficient to me - any ideas?