| Aha! Nothing is hooked up to the D1/M2 terminals on the H (middle) terminal leads. According to the EIM installation manual D1 is supposed to be jumpered to R and M2 is supposed to be connected to the Low Speed Fan. I also noticed that he only connected W1 (Heat stage 1). Am I only running in 1 stage heat mode, or does the furnace logic determines if the 2nd stage should kick in? Thanks, Rob |