the only issue I’ve had with my Kamoer X1 Pro’s is not dosing the full amount.
What was happening is the pin would spin inside the pump head but it wouldn’t spin the rollers all the time.
The net result was you see a drip and then it would stop and then start again. This was completely random, sometime it would happen, sometimes it would dose the entire amount.
I reached out to customer support, sent them a video of the dose starting and stopping while the pump ran the entire time and they sent me a brand new pump. I actually asked them to send me just a new pump head, since the pump looked to be working, but they said they just send a new pump. So either they know something I didn’t or they just want make sure there’s no issues we didn’t o ow about. I don’t know but the new pump has been flawless as have other pumps I have.
Anyway you might want to check the rollers are actually turning g.