What was found
L2 WINDOW OVERHEAT LIGHT ILLUMINATED, COMPLIED WITH QRH PROCEDURE AND OVERHEAT LIGHT ILLUMINATED AGAIN. ACFT GROUNDED. PERFORMED WINDOW HEAT CONTROL UNIT BITE PROCEDURE IAW FIM 30-41 TASK 801. NO FAULTS FOUND. PERFORMED RESISTANCE CHECK OF WINDOW TEMPERATURE SENSORS FOR THE L2 WINDOW IAW AMM 30-41-21-760-801. PERFORMED RESISTANCE CHECK OF WINDOW HEAT FILM ON THE L2 WINDOW IAW AMM 30-41-21-000-801. PERFORMED WINDOW HEAT SYSTEM OPS TEST IAW AMM 30-41-00-710-801. COULD NOT DUPLICATE THE PROBLEM. NO HISTORY PAST 30 DAYS.