Heating Repair Cause of the issue was a tripped limit switch on the inducer motor. This was most likely caused by back pressure from wind keeping the exhaust from venting properly. Reset limit and tested system operation. System is operating normally at this time. Vent may need to be extended above roof line to keep this from reoccurring. Also noticed a damaged wire guard going into the outdoor coil while looking at exhaust pipe. Secured wire guard as much as possible.