As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L SIDE WINDOW HEAT ILLUMINATED MULTIPLE TIMES ON CLIMB AND DESCENT. PER QRH - TURNED OFF AND TO REMEDY OVERHEAT. GROUNDED - YES. BITE TEST OF WHCU SHOWS TEN CONSECUTIVE "SENSOR" FAULTS. VERIFY PASSES. SENSOR OHMS AT 314. COMPARED TO RIGHT SIDE, ALSO 314 OHMS. WINDOW CODE IS H16. CONFIRMED TERMINAL ONE IS USED. HEATER IS 61 OHMS. THIS MATCHES DATA ON TABLE 1 OF WDM 30-41-12 PG-3, SHEET 2. REPLACED (M322) L SIDE WHCU PER AMM 30-41-11/401. TESTS GOOD PER AMM 30-41-11-710-801.