We have a central ac/heat system by amana(modBMA42F10A).. ac works great..
Heat blows cold air... used last year and worked fine.. seems like heat coils are not turning on... I took them out cleaned and checked them for continuity.. put them back..
Temp limit sensor was dirty... (cleaned it with DG electronic parts cleaner) and heat still won't turn on. Ducts are in a1 shape.. could it be heat sensor, there are 2 of them (kind of hard to think both went bad) how do I check.. or any other ideas or advice would be appreciated...
Cold in fl for the 1st time.

Mike