As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT WITH CLIMB POWER, FULL ANTI-ICE "ON" RIGHT ICE PROTECT TEMP HIGH ANNUNCIATOR ILLUMINATED. QRH PROCEDURE TURNED OFF LIGHT IN ABOUT 1 MINUTE. -- PERFORMED RESISTANCE CHECK ON ELECTRONIC THERMO SWITCH NO DEFECTS NOTED. FOUND RIGHT ICE PROTECTION TEMP TO BE 465 DEGREES FAHRENHEIT. REMOVED AND REPLACED RIGHT THERMOSTAT.