As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEICE PSI CAUTION ENROUTE IN CLOUDS. FOLLOWED E&A CHECKLIST ON PG 12.4 AFTER SELECTING MANUAL & THEN RETURNING BACK TO SLOW SETTING, CAUTION EXTINGUISHED & REMAINED OFF. NO OTHER ABNORMALITIES. REMOVED FROM SERVICE. C/W FIM TASK 30-10-00-810-801 PERFORMED FUNCTIONAL TEST OF THE AIRFRAME DE-ICE SYSTEM IAW AMM 30-11-00-720-801 OPS CHECK GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.