Diagnosing no heat in my 91 RRC
Looking for some wisdom here guys. Been digging around my 91 RRC replacing and fixing piece by piece. It's pretty damn cold here in Atlanta and I don't have any heat blowing out on any settings. I have strong heat coming in from the top defrost vents from the cowl, but nothing else. I'm debating ripping apart the dash and replacing heater core and heater fan, but want to make sure that is my last resort.
1) I've checked all fuses and relays - no signs of short or burn out
2) Replaced the heater/fan resistor pack - restored all ac/fan speed settings that were previously non functional, but still no heat
3) Smell a small electrical burning smell when I engaged the heater function - no noise from the driver's side fan
Could I have heater fan switches blown behind the climate control or do you think stop wasting my time, order the kit from AB and start bagging and tagging the dash?