Tech found inducer wheel broken apart. ComfortSite reports replacement part is BLW 1369 and that parts warranty is valid. Two inshot burners are highly corroded. Heat exchanger shows rust. Tech found no cracks or holes in heat exchanger. Gas pack is 9 years old. Neither inducer or burners are truck stock. Left W low voltage wire nut disconnected until heat can be repaired. Cooling mode is operating. System is not heating. No charge for callback. Tech quoted repair pricing.