As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT SIDE WINDOW HEAT OVERHEATED. QRH 3.3 AND HEAT CAME BACK ON. ACFT GROUNDED. FOUND NO INDICATION OF EXISTING FAULT ON LT SIDE WINDOW HEAT CONTROL UNIT. ACCOMPLISHED, BITE, WINDOW HEAT CONTROL UNIT BITE PROCEDURE IAW FIM TASK 30-41, TASK 801. NO FAULTS INDICATED. REPLACED LT SIDE WINDOW HEAT CONTROL UNIT IAW AMM 30-41-11-400 AND TASK 20-10-07-400. ACCOMPLISHED WINDOW HEAT SYSTEM TEST IAW AMM 30-41-11-710. OPS CHECK GOOD.