What was found
IAH - FLIGHT 2822, DURING CLIMB THE CREW REPORTED A PITOT 2 HEAT INOP MESSAGE. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE CURRENT SENSING RELAY FOR THE NUMBER TWO PITOT PROBE, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.