My wet end is dribbling.
It really is. Just waiting for the new seal to arrive.
I do all my own maintenance,always have. They aren’t that complicated.
Obvious, turn it off, leave it a bit, turn it back on.
Ha e you asked the supplier of that model has a known problem? Some do. So.e have old model pumps that are unreliable so might just be that.
If your tubnisnt that old they might send someone out cheap to have a look.
Most visits from HTA start at a couple of hundred quid! See thread on charging a fair rate!