Findings Inducer motor tested at 4.9 amp max rating is 3.7amp System tripped on hi limit during tune up. Condensation at leak collector box Rusting in inducer box area X air Is 102.9 Flame sensor has rust on wiring attachment Inducer motor Collector box Flame sensor Hi limit switch All part recommend for replacement Removed, cleaned and installed gas burners Removed, cleaned and installed flame sensor Inspected heat exchanger Tested igniter Checked condensate trap Checked blower motor Checked and tested ventor motor Checked filter Adjusted gas outlet pressure to OEM spec Tested indoor coil. Dan Fox second opinion Now scheduling spring AC tune ups