Hi all
Boiler is about 10years old on the original wilo pump, and now getting f75 fault. I've checked pressure, and as the boiler is fired up I can hear a drone from the pump, but it's not moving.
I have ordered a new pump, which is a grunfoss, can I change just the head after draining, or will I need to change the entire block?
Thanks
Boiler is about 10years old on the original wilo pump, and now getting f75 fault. I've checked pressure, and as the boiler is fired up I can hear a drone from the pump, but it's not moving.
I have ordered a new pump, which is a grunfoss, can I change just the head after draining, or will I need to change the entire block?
Thanks