What to do if Stuart Turner Mainsboost Plus shows Hnt high temp cut out?
- PPeter FullerAug 3, 2025
If your Stuart Turner Water System displays an 'Hnt high temp cut out' message, it means the pump head is overheating because the head temperature has exceeded the set Hnt value. To resolve this, allow the pump to cool down. Also, check the pump inlet check valve and bypass for any debris and clear it.