Cleaned and serviced one oil fired furnace, customer changed filter, changed filter, nozzle, and strainer, inside combustion chamber clean, tested thermostat and unit fired up, but blower didn’t come on and breaker tripped, checked all connections and found water in wire nuts from leak, cut back and added new wire nuts to connections and blower came on, customers drain pan from ac on top of furnace may have a crack cannot see pan due to being enclosed coil, customer would like us to come back in spring and possibly see if pan is available.