Hi zheilwane,

Lately, I'm having problem with my 3-yr Grundfos pump - it does't kick in pump motor unless you let the tap water runs for 3 to 5 min. Normally, the pump starts as soon as the water starts flowing. Imagine how much water have been wasted.

Is that sign for a new pump replacement or just service call will fix the problem?

Thanks for your kind advise.