As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT SIDE WINDOW HEAT OVERHEAT AT FL320 RAN QRH OVERHEAT LIGHT STAYED EXTINGUISHED. GROUNDED - YES. ACCOMPLISHED TSR. ON BITE OF WHCU FOUND #2, SENSOR #1 FAULT ON M321. RESISTANCE CHECK OF TEMP. SENSOR GOOD. REPLACED R2 WHCU M321. OPS CK GOOD, NO FAULTS REMAINING.