Faema President - clogged grouphead

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TsurTriger
Posts: 18
Joined: Apr 21, 2016, 8:54 am

Postby TsurTriger » Jan 11, 2017, 3:03 am

Hello,
I have President 1Grp head that seems to be clogged.
The machine arrived very fast to 0.9Bar pressure in the boiler (around 20 minutes) but when I pull down the lever, there is very poor stream of water into the group head.

My water stream:


For comparison, other President water stream (from other Home-Barista member):


Someone has any idea how to fix it?

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dominico
Team HB
Posts: 1445
Joined: Nov 08, 2014, 12:48 am

Postby dominico » Jan 11, 2017, 3:16 am

It looks like you posted the same video twice.

My guess is that your inlet valve is set almost closed.

That nut hanging down behind the group covers a valve which allows you to adjust the flow. The valve is very finicky, only a half turn between fully closed and fully open.

Here is a video I made to demonstrate how the valve works: As you can see the far group has the nut still in place, with the near group I have removed it to be able to adjust the valve.
http://bit.ly/29dgjDW
Il caffè è un piacere, se non è buono che piacere è?

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dominico
Team HB
Posts: 1445
Joined: Nov 08, 2014, 12:48 am

Postby dominico » Jan 11, 2017, 3:19 am

I'll also state that if the cause of your flow is indeed simply that valve, then a slow inlet flow is not necessarily a bad thing. I set mine low on purpose as I feel it works better for light roasted coffee to have the chamber fill more slowly with water.
http://bit.ly/29dgjDW
Il caffè è un piacere, se non è buono che piacere è?

TsurTriger
Posts: 18
Joined: Apr 21, 2016, 8:54 am

Postby TsurTriger » Jan 11, 2017, 3:34 am

Opps, you're right. I tried to post your video as comparison.

OK, I will try it as soon as I'll be back at home. I hope you're right. I'll update you.

Thanks, again 8) , for your very helpful inputs.

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Paul_Pratt
Posts: 818
Joined: Aug 09, 2005, 11:59 pm

Postby Paul_Pratt » Jan 11, 2017, 6:25 am

Yes I agree with Dominick, the flow valve may need to be opened a bit more. But the flow doesn't look too bad to me.

TsurTriger
Posts: 18
Joined: Apr 21, 2016, 8:54 am

Postby TsurTriger » Jan 11, 2017, 1:03 pm

dominico wrote:It looks like you posted the same video twice.

My guess is that your inlet valve is set almost closed.

That nut hanging down behind the group covers a valve which allows you to adjust the flow. The valve is very finicky, only a half turn between fully closed and fully open.

Here is a video I made to demonstrate how the valve works: As you can see the far group has the nut still in place, with the near group I have removed it to be able to adjust the valve.

WOW, you rocks ! 8)
Works great. Now I know better my lovely President mechanism.
That adjustable pre-infusion is genius.