What was found
LEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. WHILE TEST, FOUND WINDOW HEAT POWER LT FRONT C/B BROKEN, IT OPENS SIDEWAYS AT P6-11, B9. REPLACED "WINDOW HEAT POWER LT FRONT" CB 228, REF WDM 30-41-11 AND SWPM 20-30-00. BITE WHCU FOR L1 WINDOW IS SHOWING WINDOW SENSOR FOR CURRENT FAULT AND FLT HISTORY. USED ALT WINDOW TEMP SENSOR S/W WINDOW SENSOR FAULT WOULD NOT RESET IAW FIM 30-41, TASK 812. L-1 WINDOW PRIMARY AND SPARE SENSOR INDICATOR OPEN REF WDM 30-41-11. L-1 WINDOW REMOVED IAW 56-11-11-000-801. INSTALLED NEW L-1 WINDOW IAW AMM 56-11-11400-801, 3A-G1-13. COMPLETED L-1 WINDOW INSTALLATION ALL OPS CHECKS GOOD, NO OVERHEAT LIGHT ILLUMATED DURING TEST REF MM 56-11-11-400-801.