As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED THE LANDING GEAR WOULD NOT RETRACT. AS SOON AS THEY SELECTED GEAR UP THEY RECEIVED A LANDING GEAR INOPERATIVE CAUTION. SELECTED GEAR DOWN, RAN THE QRH. PERFORMED A MANUAL EXTENSION TO ENSURE THREE GREEN DOWN AND LOCKED. FOUND FAULT CODE DIN01A IN THE PSEU, LANDING GEAR CONTROL PANEL REPLACED.