Today I stumbled upon a very freak design of fan!
my client brought a CM 90 cfm fan for LED replacement but it eventually become a pain in the neck since the wires and LEDs I replaced weren't broke. It took me sometime to figure out what the problem was and voila, the culprit was the loose connection of the positive pole of the the wire going to the circuit board.
I first thought it was an easy task but the solder points were inaccessible.
So here goes my tuts:
Tutorial: how to remove the LEDs, fan blades, bushing and circuit board of a CM or Gigabyte fan
Step 1. bore a hole on the center rear part of the fan where we usually see the C-clip which holds the blade in place. You will find a circular mark where the manufacturer sealed the clip.
Step 2. As soon as you bore a hole you will find a different type of clip but same in material with the generic fans might be acetal.
Step 3. Remove the clip then pull out the fan blade coming from the front.
Step 4. Remove the LED locks.
Step 5. Then pull out the LEDs and their correspondng wires.
Step 6. Remove the bushing
Step 7. You can now pry out the circuit board with ease since there is no more bushing that gives pressure...
To return the pieces back in place you must start with the LEDs with the lock
then the circuit board
then twist the circuit board to straighten the LED wires and align it to the groove!
A little lubrication to the fan shaft
then put back the blade to its place
Then lock the blade with the clip
and put back the original sticker to seal the opening.
tested the fan and it works
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