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Yet, minor installation and setting errors add to unnoticed performance drops over the system\u2019s lifetime. With the advent of smart meters that constantly measure electricity consumption, data patterns of heat pumps have become available, even for the many not connected to the Internet. These data hold the potential to monitor heat pumps continuously, identify issues, and thus assist energy consultants and heat pump owners in lifting hidden conservation potential. Yet, research and practice lack an overview of specific problems that could help in this task. In a mixed-method approach, this study investigated 228 protocols of on-site heat pump inspections in Switzerland and found 47 problem classes with varying frequencies. Based on this empirical data and expert interviews, a classification scheme for heat pump issues is proposed and validated. It uncovers the cause of problems, how and by whom they can be recognised and solved, and potential benefits. The work demonstrates that (i) several problems are likely to create smart meter patterns and that (ii) heat pump owners could be involved in the problem recognition and solving process if they get guidance (i.e. simple rules and instructions). Finally, this study discusses implications for developing information systems to automate and assist the recognition and solving of problems. Such information systems may raise not only the attention of heat pump owners but also trigger desired actions (i.e. request consultancy, inspect heat pump themselves).<\/jats:p>","DOI":"10.1186\/s42162-022-00250-3","type":"journal-article","created":{"date-parts":[[2022,12,21]],"date-time":"2022-12-21T13:03:13Z","timestamp":1671627793000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Identification and classification of heat pump problems in the field and their implication for a user-centric problem recognition"],"prefix":"10.1186","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8093-3710","authenticated-orcid":false,"given":"Andreas","family":"Weigert","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,12,21]]},"reference":[{"key":"250_CR1","doi-asserted-by":"publisher","first-page":"151","DOI":"10.1080\/10789669.2006.10391172","volume":"12","author":"P Armstrong","year":"2006","unstructured":"Armstrong P, Laughman C, Leeb S, Norford L (2006) Detection of rooftop cooling unit faults based on electrical measurements. 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