I've had a request to share what the guy who invented the AlpenRost had me do
as a diagnostic test on my Alp. So, here's the best of what I can remember.
Also, as a disclaimer, do this at your own risk and take appropriate safety
1) With the unit unplugged (off ) for at least 10 seconds to allow the
electronics to settle, position the unit so that you can see the settings
display while you plug the unit into a wall outlet. You should briefly (1-2
seconds) see the display indicate a 1 and then it will indicate an 8 when you
first plug-in the power.
2) Using the up/down arrow pads, scroll the setting all the way down to 1
and then all the way up to 15 to make sure the unit is reacting to the input.
3) This next part will involve actually operating the unit with the roasting
drum removed, so remember to stay clear of the heating element during this
part of the test as it will burn the heck out of you if you touch it. The
Alp is capable of reaching an internal temperature of 900 degrees F which is
some serious heat.
- Lift the lid, remove the roasting drum and set it aside. Look to the
area that is just right of where the drum sits. You will see two door flaps
that should be in the open position. Press "Start" and you will see that the
flaps will immediately close. You will also see that the gear that normally
engages the drum should be rotating.
The fan that exhausts the air should also be blowing some air, but not as
much as it does when those flaps are open. The heating element should be
heating up and about 1.5 to 2 minutes after you pressed the "start" button,
you should be able to hear the sound of the motor change in pitch as the
heating element is cycling. This is a very important test for those of you
who are worried that the heat is stuck on full blast.
- You do not need to allow the unit to go through the full heating cycle for
these tests, so press the "Cool" button, and you will see the flaps
immediately open, the heating element will start to cool down and no more
heat element cycling should occur. A few minutes into the cooling cycle, you
will hear and see the drum gear reverse directions which is what ejects the
beans into the bean cup if you were doing an actual roast.
This is about all I can remember from the tests. Here's a few other tips I
got. If you unplug the unit from the wall, always wait 10 seconds before
plugging it back in. Lack of routine cleaning is probably one of the largest
causes of failures down the road as you use the Alp. Anthony told me to take
time to clean it after every use, by removing all the chaff, especially the
chaff that collects around the burners and the exhaust fan area. I've found
that compressed air does a pretty good job of blowing this out, but be
outdoors as it goes everywhere. Maybe a small vacuum would be better.
Anthony also said to keep those flapper doors clean from the bean oils that
will accumulate on them and around the opening to the doors. If you let this
go, the doors may tend to stick rather than open properly because these oils
can get gummy. This is turning into a book, so I'll stop here, but hopefully
this will be useful to some of you. Best wishes on your roasting.