@BlackStripeCoffee - Some fan designs do allow removal of the Fan blades for cleaning, but not typically for this kind of fan. From my experience (building PCs for many years) I’ve found that replacement is generally a better choice when these fans get noisy internally.
These fans, especially under a dusty-oily environment will have a life-span/duty cycle that will eventually be exceeded. It appears that this particular ADDA fan model (from the ADDA website) is not a “current model” or readily available via resellers. So, unless Aillio provides information for a replacement, eventually the users will face searching for a replacement/alternate fan. The main thing is to understand the Fan’s operational characteristics and size so that a suitable replacement can be found. Here are the specs that I gathered on the ADDA fan that Aillio is using:
ADDA Part Number: AD0824XB-F79DS
Model Number Breakdown
|DC Axial Fan
||Over Ultra High
||Dynamic and Static
Also, the amperage of this fan is 0.65 amps. Since this particular model doesn’t show on the ADDA website, I estimated the speed of 6200 rpms via similar amperage (current) ADDA fans on their website.
So, we would be looking for several important things in the replacement:
- Fan voltage of 24V DC and amperage (current draw) of 0.65A (or less)
- Fan frame size of 80mm by 38mm
- 3-wire PWM control (which provides 2-wire power and a 3rd wire for PWM feedback)
Blade count can be variable with these fans depending upon the design and efficiency of the blade design. This fan has 7 blades, but if I found a fan that met the basic prerequisites, but was 5 blade and also provided the flow of ~6200rpm, that would be OK.
ADDA website for Fan Model numbering schemes:
ADDA Fan Model numbering schemes