As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R1 FOGS UP & FORMS FROST ON THE LOWER INNER CORNER ABOUT 10" UP & 4" FROM THE CORNER. VERIFIED RT FRONT INBOARD SIDE OF WINDOW HAS ICED OVER. CHECKED WINDOW SENSOR READINGS. FRONT RT=326 OHMS AT PIN 13 TO 26. SENSOR READS 396 OHMS. REPLACED R1 WINDOW. OP CHECKS NORMAL.