I’m not sure how many fans are in the Bullet, but my question is about the “half exposed” fan at the bottom rear of the machine (see photo). During a roast about a week ago, I started hearing a sound that I can only liken to a playing card in the spokes of a bicycle wheel… a very fast bicycle. It is kind of a high pitched sound and gave me the impression that something was “clicking” in the blades of one of the fans. After the roast, I cleaned the chaff, the chaff filter, and vacuumed around the big squirrel cage fan. I looked at the little fan in the bottom and decided to spin it to see if that was where the noise was coming from… it wouldn’t turn. I didn’t try to force it, afraid I would break it. Later, I tried to find some info on line, but couldn’t find anything. So, my questions:
- Is this fan supposed to be able to be spun when the roaster is off?
- Is this the fan that is referred to as the “impeller” fan?
- What is the best way to inspect this fan? Do I have to remove the entire back end of the machine?
- Is there a tutorial or info on line that covers this fan?
Sorry if I am covering ground that has already been covered. If someone can direct me to some information it would be greatly appreciated.
I roasted today, and the same sound occurred late in the roast and through the cooling cycle. I also got a A-08 error message during the cool down phase which is not unusual on my machine. I do not have an external fan connected to the exhaust. I vacuum clean the chaff filter after every roast, but it is probably due for a soaking (Cafiza is my cleaner of choice).
Thanks so much for any help/suggestions.