As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - UNABLE TO CONTROL CABIN TEMP AT ALL IN AUTO OR MANUAL. ROSE ON CLIMB TO DUCT TEMP 50 DEGREES. STAYED THERE DESPITE CHECKLIST UNLATCH PROCEDURES. INVESTIGATED AND FOUND THE COMPRESSOR FAN OF THE ACM FROZEN-NO MOVEMENT. REPLACED THE ACM PER -200 AMM 21-50-11-00-801 AND 21-50-11-400-801.