B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 240; Flight Crew Total 35000; Flight Crew Type 18000
Distraction; Situational Awareness; Workload
Aircraft Equipment Problem Less Severe
Flight Crew Landed As Precaution; Flight Crew Returned To Departure Airport
Aircraft
Departed ZZZ during climb out engine number one temperature increased into the caution; yellow range.  Ran QRH. Landed uneventfully.
A 737 Captain reported a rising engine temperature indication in one engine during climb out; which resulted in a return to the originating airport.