HomeRoast Digest


Topic: Alpenrost stuck on hot - PROBLEM SOLVED (38 lines)
1) From: liptak
Hi,
I recently posted my problem with Alpenrost heating to full power (extremely 
low roasting times, uneven roasts, etc).
I'm happy to say that I solved the problem. For those who may hit this issue 
in the future, I'm posting the workaround.
There is a tiny metal wire attached to the middle of the spiral, on the left 
side (when watching the front of the machine). It's attached from the bottom, 
covered by omega metal cover, fastened by two phillips screws. The wire is 
covered by heat resistant insulant hose. From what I think, this is the heat 
sensor, which controls the stability of the inner temperature.
When I recently tried to clean the cover beneath the heating spiral, I 
unscrewed the brackets holding the spiral, and tried to pull up the spiral to 
gain some space for comfortable cleaning. The wire was not flexible enough 
tho, so I had to screw the brackets back. Probably this was the crucial 
moment, when I crossed (shortened) the metal wire and didn't notice that.
Today I checked the wire and discovered the shortened circuit. I was not able 
to pull up the insulant hose from the inside of the Alp, so I pulled the wire 
with tweezers to get some space in between and assure the wire is not 
touching the metal bracket.
The picture of the wire is herehttp://chch.sk/sensor.jpgI immediately tested the machine without the drum, and was happy to see the 
spiral holding the same (dark) level. Real roasting resulted with very nice 
balanced roast.http://chch.sk/ecuador.jpgKristian


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