HomeRoast Digest


Topic: GeneCAfe question... (11 msgs / 231 lines)
1) From: Ken Knott
I've noticed that my GeneCafe has lately been struggling to get all the way up to 482.  It often seems to top out at 471-473.  Listening closely this time I noticed that the heating element seems to begin to cycle on and off at about 465.  I would expect that it would not normally do that until 482 if that is what it's set at.
Is anyone familiar with this?  
Thanks,
Ken
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2) From: raymanowen
It's none of my business, but what are you trying to roast that hot? Will
you be drinking any of the later extractions, or are you a subcontractor for
*$? -ro
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3) From: John A C Despres
Hi, Ken!
Two things to check.
1) The intake vents are clean at the right front bottom of your roaster.
2) Take apart your chaff collector and make sure it is thoroughly clean.
There a several screws to remove - also remove the inner screen and make
sure it is clean as well. You can soak the parts in a strong solution of
Simple Green and then scrub them with a stiff brush.
At what temp does your roaster begin to stutter?
John
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4) From: Frank Parth
Ken,
Take your chaff collector and boil it if you haven't done that lately. It tends to get crudded up. See if that helps.
Frank Parth
<Snip>
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5) From: Raymond Hays
Hello,
My GeneCafe did the same thing and I tried stated remedies and found out that 
the heater was on the blink, so I contacted Fresh Beans and ordered a new 
heater.  Replacement was a snap!  
skaleshttp://www.freshbeansinc.com805-501-7731
Raymond
From: Ken Knott 
To: homeroast
Sent: Mon, September 6, 2010 11:16:41 AM
Subject: [Homeroast] GeneCAfe question...
I've noticed that my GeneCafe has lately been struggling to get all the way up 
to 482.  It often seems to top out at 471-473.  Listening closely this time I 
noticed that the heating element seems to begin to cycle on and off at about 
465.  I would expect that it would not normally do that until 482 if that is 
what it's set at.
Is anyone familiar with this?  
Thanks,
Ken
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6) From: John A C Despres
The heater going bad could be a result of poor cleaning & maintenance.
John
On Tue, Sep 7, 2010 at 12:40 AM, Raymond Hays wrote:
<Snip>
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7) From: Ken Knott
I supposed I should have mentioned that I clean the chaff collector regularly.  And frankly, it's never been clogged to begin with.  I can always see through all the little holes, quite clearly.  So yes, it 'could be' due to poor cleaning and maintenance, but its not and I personally think its an overly hyped excuse.
I will check the intake screen, but having checked that previously and found zero evidence of 'dirtyness', I doubt it.
This is a replacement heater, which I installed about a year ago after the first died, and frankly it has never really worked quite right. It has always done this, but it gets close enough to the top of the heating range that I've always been able to get by with its.  I just noticed this last batch for the first time, that the heater was cycling on and off before even reaching the set temp so I thought that might be a clue to relate.
Sorry, if I came off grumpy... VT lost a big game last night and I'm a die hard Hokie...
Ken 
<Snip>
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8) From: John A C Despres
OK. If the heater has been acting oddly for a year, why didn't you call Tim
back right away?
You can believe what you like, but if the chaff collector is not clean, it
will impede the airflow and send false information to the sensor, thereby
giving you poor performance.
John
On Tue, Sep 7, 2010 at 9:50 AM, Ken Knott  wrote:
<Snip>
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9) From: Raymond Hays
Ken,
Just a note here!  I have always used the cleaning ritual, I'm a maintenance 
believer.  It was just time for the heater to go bonkers.  Some do that!!
Raymond
From: John A C Despres 
To:"A list to discuss home coffee roasting. There are rules for this list, 
available athttp://www.sweetmarias.com/maillistinfo.html"
Sent: Tue, September 7, 2010 7:04:22 AM
Subject: Re: [Homeroast] GeneCAfe question...
OK. If the heater has been acting oddly for a year, why didn't you call Tim
back right away?
You can believe what you like, but if the chaff collector is not clean, it
will impede the airflow and send false information to the sensor, thereby
giving you poor performance.
John
On Tue, Sep 7, 2010 at 9:50 AM, Ken Knott  wrote:
<Snip>
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10) From: raymanowen
One more thing- It's a machine, and there is no magic involved. Cleanliness
is the first step in machine maintenance. Machines don't prevaricate-
they're just tattle-tales. Good maintenance is good. You might fool
yourself, not the machine.
You could be experiencing a "power dip" between 10am and 2pm when everyone
is at work and has all their stuff turned on. Have you correlated the times
of day?
If "...[You] would expect that it would not normally [cycle] until 482 if
that is what it's set at," What were you looking for and how were you
looking- temperature dial? Where is its measuring point? Better yet, was zum
Teufel do you want, Temperature or Taste?
PID controllers do that all day long- they just have to "learn" the system
dynamics first.
Cheers, Mabuhay -RayO, aka Opa!
If "Some clean" is good, mo is betta and you might detect an incipient
failure before it makes blue fire and smoke - or nothing works...
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11) From: Phil Palmintere
I have taken to roasting outside with my GeneCafe, and I've taken to
roasting without the chaff collector.    You might try that to see if it
makes a difference with your unit.
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