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I don't know, and I'm in the same boat. Doser is about that age and it spins about a 1/4 turn and just starts buzzing loudly. It will spin with the blue cover off until the rollers start coming out. Won't work while connected.One of the heads on my 2 month old doser is playing up. It tries to dose but nothing spins, I've taken the head apart and replaced the tubing, everything looks ok but still won't spin. Any ideas?
I am only using 3 of the 4 heads so I took the unused rollers and cover and moved them to the problem one. I think I just wore it out faster than I expected. I think I'm going to have to add a Maxi doser for my Kalk.In the end I took the rollers out washed, dried and replaced, still stuck. Tried it on the lowest speed and the roller seemed to catch on the blue cover, a little bit of manual moving of the blues cover and now seems to run ok. Must admit I am a little nervous using the head again,as it was dosing alk for me, luckily noticed it wasn't working after just one day.
I thought those problems were awhile ago. My unit isn't even 2 months old.There were issues at one point with roller sizes and the blue caps on the 2.1, reach out to @Vinny@GHLUSA or @Marco@GHLUSA and they will set you right!
If you take off the blue caps do you see any white residue in them? Like a powder? That would mean the rollers are too tight. If no, then it may be something more involved.
Yup, that is what I am thinking. Probably just not the right doser for my application. I likely should be using the Maxi for 1L per day dosing and the regular one for my much smaller dosing amounts.Should be something else. They claimed that it was a tolerance issue from an earlier batch 2 years ago or so. I got some bad head for my doser 2.1 which was built at end of 2016. But once I got the replacement head cover and roller unit from GHL, they still stucked several months later...I found out if the head was set to run at lowest speed at the beginning it will last forever. But if you set it to run at fastest setting or 2nd from fastest it will grind the blue cover no matter what...
Hi,Brew12,
What was the issue? Currently setting up my doser by the pump is sticking. Can' calibrate. Pump is not even one week old.
I am using the 24v ps.Hi,
First, check you use a 24v power supply and not the Profilux 12v power supply.
Gaël