What was found
DURING TAKEOFF ON FLIGHT 2704 CREW RECEIVED WING ANTI-ICE FAIL CAUTION MESSAGE. ON DESCENT CREW FOLLOWED AOM PROCEDURE WING ANTI-ICE FAIL CAUTION RETURNED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED RIGHT WING ANTI-ICE LOW PRESSURE SWITCH IAW AMM#30-11-02. DID NOT SOLVE THE PROBLEM TRANSFERRED TO ITEM 2 SAME LOG PAGE REMOVED AND REPLACED THE RIGHT WING ANTI-ICE VALVE IAW EMB 145 MM CH 30-10-01 OPERATIONAL CHECKS GOOD. THE AIRCRAFT RETURN TO SERVICE.