Technical Bulletin TB14-005 Grundfos Pumps Miswired
Since the introduction of the three-speed models Enertech has noticed an unusual increase of warranty claims for the 230 VAC Grundfos pumps. We believe many of the claims were due to miswiring of the pumps due partly to the vendor’s change of the supply wire connection terminals. Please read and pass along to your technicians and installers.
TB14-005 - 271 kB