The present application provides a method and a user device for monitoring a use condition. The method includes determining a baseline level of performance for each of one or more elements of the device including a determined replacement threshold level. The method further includes running a diagnostic determining the current performance of at least some of the one or more elements for which a baseline level of performance has been determined, wherein the running of the diagnostic includes a diagnostic determination triggered by a detected non-standard use condition. The current performance of the at least some of the one or more elements is compared to the determined baseline level performance for the respective ones of the one or more elements of the user device. When the determined current performance of at least one of the one or more elements falls below the determined replacement threshold level, the user is notified of a need for service of the user device.