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Router Cooling Fan - Vertical Style - No Router Modification

4,696 views · Published 31 December 2018 · 3:44 · Indexed 11 October 2026

Channel: tsbrownie · 2018 · Science & Technology

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DIY home router cooling fan hack.  Big benefit: this "mod" should not impact the product warranty since only the plastic base is affected (and that's not usually submitted for warranty matters).  

This router is on 24x7 in a home office that is only air conditioned when someone is working in there.

Other models:
https://www.youtube.com/watch?v=gTCOAdfPT-0
https://www.youtube.com/watch?v=nJJrPLKc6Rs
https://www.youtube.com/edit?video_id=vhPPwJ61FnE


Summary: In the wooden box beneath the router stand there is a small pie fan that blows up into the vents of the router.  The fan is powered from the 12 volt router source, but I run it at 9 volts (via a 7809 device) to reduce fan speed / noise.  The 9 volt thing is optional; a 12 volt fan can be run directly from the power supply.  The holes need to be cleaned of dust occasionally, for both efficiency and safety (prevent the fan / router from overheating).

UPDATE 20131127: this router has become my longest running, so it seems like this really helps.

Materials Used:
- Wooden "box" (from electrical supply store.  Sized for router)
- 12 volt computer fan (good quality for quiet and long life)
- 12 volt wall wart (sized to prevent overheating.)
- Fuse to protect fan / wall wart.  
- 7809 voltage regulator (optional).  
- Misc: Soldering stuff, electrical tape, shrink wrap, screws, etc.

(Re-edited for Annotations 20181231)

WARNING: Information offered as is.  You are responsible for how you use it.  There is always danger of fire with electrical items, especially if mis-wired.

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