This study aims to provide a qualitative insight into the experiences of people living with type 1 diabetes mellitus (T1DM) who use an insulin pump, and thus inform diabetes care practices including psychological support programmes.Patients attending a specialist T1DM outpatient clinic were invited to share their experience of living with an insulin pump. Participants took part in either a semi‐structured interview or a focus group, which were audio‐recorded and transcribed. The data were analysed using a framework approach based on the Optimal Health Wheel comprised of six domains including Physical, Social, Intellectual, Emotional, Occupational and Spiritual values.A total of 15 individuals participated in a semi‐structured interview (n=7) or a focus group (n=8). Participants were aged between 20 and 60 years with a duration of pump use ranging from 7 weeks to 9.5 years; the majority were female (n=12). A total of 19 sub‐themes were identified under the six Optimal Health Wheel domains.It was concluded that the Optimal Health Wheel is a useful framework for qualitative data analysis. Its application synthesised some new themes (emotional–physical interplay, self‐esteem and personality, and sense of self), as well as building on previously described themes such as self‐management and the pump's physical presence. These provide insight into the lives of people living with T1DM and an insulin pump. Copyright © 2018 John Wiley & Sons.