Thanks for prompt replyTwgas
Yes they both shut down when satisfied.
To be honest I think it's behaving as it should???
It will run constant, till the rads are up to full heat & before the wall stat is satisfied it cycles approx 1 min on, 2 off but can vary a bit from that.
It just...
First post so be patient!!! :D
I recently had my circ pump replaced on my fully pumped system after my old one failed.
The replacement model is a Wilo Gold R550, very quiet compared to the old one, so it must have been on the way out. Since then my Prima 40F seems to cycle much more than it...