A Grundfos UPS2 15-50/60 pump has just failed on me whilst I was recommissioning a small micro bore system after cleaning. It blew a 5 amp fuse on start-up and on inspection one of the electronics boards has failed short circuit causing a flashover between the live and neutral terminals internal to the pump. Definitely no way water has got in.
Grundfos are getting me a replacement under warranty but I am concerned at a catastrophic failure in an almost new pump (manufactured week 34 2013, only installed in May and not used until two weeks ago). Am I the only one with this problem? I only installed the UPS2 because the original British Gas supplied Grundfos pump was badly balanced and caused a lot of pipe vibration.
Grundfos are getting me a replacement under warranty but I am concerned at a catastrophic failure in an almost new pump (manufactured week 34 2013, only installed in May and not used until two weeks ago). Am I the only one with this problem? I only installed the UPS2 because the original British Gas supplied Grundfos pump was badly balanced and caused a lot of pipe vibration.