Completed with heat 1 on 2010 trane gas horizontal in attic 4 ton, found furnace poorly operating due to age and components not being in good condition, found heat exchanger with alot of corrosion, flame sensor, ignitor showing wear, inducer motor pulling high amps and blower motor shakes at times on start up showing sings of failure. Giving customer the option to do all preventative repairs, minimum repairs, furnace upgrade or complete. Customer requested for pricing but he is not ready to move forward on replacing unit untill talking with wife