[Homeroast] Grinder

raymanowen at gmail.com raymanowen at gmail.com
Sat Dec 25 00:16:46 CST 2010

The Virtuoso grinder is nearly identical with the Maestro and Maestro Plus

With the grind adjustment nut set away from the end point at which the bean
hopper may be removed, the failure points are:

   1. brushes approaching wear limit,
   2. dirt, (coffee grounds?) dust under one or both brushes,
   3. dirt, (coffee grounds?) dust in timer microswitch,
   4. dirt, (coffee grounds?) dust in grind limit microswitch,
   5. thermal fuse open,
   6. undefined SNAFU-

1.- test by bumping grinder while grind mode actuated; "fix" is obvious if
it runs momentarily when you bump it.
2, 3, 4.- use keyboard vacuum adapter to clean out these switches
5.- should show a short on continuity test- if not, make it so for testing
purposes- not intended to diagnose, treat, cure or prevent any malfunction.
6.- leave it alone; refer maintenance to qualified semi-retired technician.

The Virtuoso burr set was a sintered iron fabrication; has lasted over 5
years in the hands of the meanest of coffee slugs -ro

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