Alright. Wasn't the resistor. Changed out with same results. BUT what I did discover while feverishly mashing buttons, that if I pushed harder than you would expect to have to push, the fan would start blowing. AC, vent, heat and defrost. So, possibly the panel control is dorked up? Another symptom: when I wud press the off button, the fan continued to run until I placed the speed controller to low. Then it wud shut off. And the process wud start over. Mash hard, fan comes on for each control, switched low to high, all 4 worked, press off button, won't shut off, flip switch to low, shuts off. Maybe combo of bad control panel and electrical behind the panel? What's our thoughts on this. Sounds like pulling the control panel out will be a b!tsh.