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Problem With Mazzer Mini Doser
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chilly65
Senior Member


Joined: 4 Jul 2012
Posts: 5
Location: atlanta georgia
Expertise: I love coffee

Posted Wed Jul 4, 2012, 3:57pm
Subject: Problem With Mazzer Mini Doser
 

I just signed up for the forum today, after reading quite a few posts about problems with Mazzer Mini doser levers. The problem I am having is that frequently when I pull the doser lever no coffee is dispensed. I looked at many photos, and just finished removing the metal/plastic thing that holds the ground coffee, to which the doser lever is attached (I don't know what that container is called). At any rate, I can see no broken springs or broken parts. It appears that the small lever that fits against the brass cog on the bottom of the plate does not always engage. I realize that I have probably done a terrible job of explaining my problem, but I thought that perhaps someone here could help out, or suggest some place to send the doser unit for repair. Whole Latte Love wants me to mail the entire grinder, and won't permit me to send just the doser. The unit is about 10 years old, and grinds coffe just fine.

Thanks for any help.

Mike
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hankua
Senior Member
hankua
Joined: 29 Aug 2009
Posts: 276
Location: Jacksonville, Florida
Expertise: I like coffee

Espresso: Salvatore One Black
Grinder: Major, Rossi, Tanzenia,...
Drip: Behmor Brazen, CCD
Roaster: Feima 800n
Posted Wed Jul 4, 2012, 8:50pm
Subject: Re: Problem With Mazzer Mini Doser
 

Hi Mike!
I tore down a mini doser awhile back; and if your handy it's not a big deal. Otherwise let someone else do the overhaul for you. There's plenty of posts to read if you use the search function. Good luck!
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chilly65
Senior Member


Joined: 4 Jul 2012
Posts: 5
Location: atlanta georgia
Expertise: I love coffee

Posted Thu Jul 5, 2012, 7:02am
Subject: Re: Problem With Mazzer Mini Doser
 

I did a search, and spent quite a bit of time looking at the posts, but so far have not found anything on my problem.  I have tried to find a place that repairs Mazzers, but so far no luck.

Mike
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hankua
Senior Member
hankua
Joined: 29 Aug 2009
Posts: 276
Location: Jacksonville, Florida
Expertise: I like coffee

Espresso: Salvatore One Black
Grinder: Major, Rossi, Tanzenia,...
Drip: Behmor Brazen, CCD
Roaster: Feima 800n
Posted Thu Jul 5, 2012, 2:48pm
Subject: Re: Problem With Mazzer Mini Doser
 

Ok then, take the doser off and snap a few photos. You have to wedge the star wheel from the bottom to remove the bolt. Don't force or put a pliers on the star, work from the bottom. Also there's a roll pin to remove, and a punch or nail can be used to get it out. Basically take it apart, clean it up, put a little grease on, and have fun putting it all back together. If you tighten the bolt all the way on assemble and it's too stiff, back it off until it's turning smoothly. Parts are easy to find. A new foam gasket is not a bad idea, and don't over tighten the doser  to the grinder, it can bend and get out of round.
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chilly65
Senior Member


Joined: 4 Jul 2012
Posts: 5
Location: atlanta georgia
Expertise: I love coffee

Posted Thu Jul 5, 2012, 3:27pm
Subject: Re: Problem With Mazzer Mini Doser
 

Thanks again.  The problem seems to be with the piece that engages the "star wheel" as you called it.  When I removed the bottom plate yesterday, I cycled the lever quite a few times to see what was going on.  I saw that the piece did not always engage the wheel.  I know there are scientific names for these parts, such as cog, gear, wheel, sprocket, but just not sure which to use.

At any rate, I called 1st Line today, and they said I could send just the doser to them to repair, which is what I think I will do.  The lady I spoke with said the technician would be back on Monday and I could call then and discuss the problem to see what he suggests.

Thanks again for taking the time to address my problem.

Mike
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hankua
Senior Member
hankua
Joined: 29 Aug 2009
Posts: 276
Location: Jacksonville, Florida
Expertise: I like coffee

Espresso: Salvatore One Black
Grinder: Major, Rossi, Tanzenia,...
Drip: Behmor Brazen, CCD
Roaster: Feima 800n
Posted Fri Jul 6, 2012, 7:09am
Subject: Re: Problem With Mazzer Mini Doser
 

No problem; probably just a return spring needs replacing. Try looking at EPNW, they have diagrams and the parts department should be able to help.

http://www.espressoparts.com/MazzerDoserPartsOnly
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fescueman
Senior Member


Joined: 3 Mar 2013
Posts: 1
Location: Carefree, AZ
Expertise: I love coffee

Posted Sun Mar 3, 2013, 7:25am
Subject: Re: Problem With Mazzer Mini Doser
 

Mike,
I'm new to this site, but am having the exact same problem with my Super Jolly doser. Wondering how you resolved your problem with the doser not engaging. How'd it turn out?

Thanks, Scott
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chilly65
Senior Member


Joined: 4 Jul 2012
Posts: 5
Location: atlanta georgia
Expertise: I love coffee

Posted Sun Mar 3, 2013, 8:14am
Subject: Re: Problem With Mazzer Mini Doser
 

I sent the doser back to 1st Line (I bought it from them), and they took it apart, and cleaned and lubricated it.  They charged me $15, including the return shipping, and it works just like new.  Great customer service.
Mike
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