What was found
LEFT SIDE WINDOW HEAT, OVERHEAT LIGHT ILLUMINATED DURING CRUISE FLIGHT AT FL340. FOLLOWED QRH. LIGHT ILLUMINATED AGAIN AFTER SEVERAL MINUTES. ACFT GROUNDED. PERFORMED BITE CK LT SIDE WINDOW, FOUND WINDOW SENSOR FAULT. PERFORMED FIM 30-41, TASK 811 FOR WINDOW SENSOR, SWAPPED WIRE FROM PRIMARY SENSOR TO SPARE SENSOR. LT SIDE WINDOW, OPS CK NORMAL. WINDOW HCU BITE NO LONGER SHOWS FAULT REF FIM 30-41, TASK 811 AND 30-41, TASK 801.