Fitting fan to cool fridge advice wanted.

Discussion in 'Tech/Mech General' started by Nirvanauk, Aug 1, 2015.

  1. Nirvanauk

    Nirvanauk Funster

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    so, following on to an earlier thread on how to make the fridge work more efficiently I ordered a fan to put in to the top vent.
    The fan is a Artic PWM F8 12 volt, that gives the ability to adjust the speed.

    The questions are:
    1. How do I adjust the fan speed?
    2. It has 4 wires, how do I pick the 2 I need just for 12v +/- .?

    As usual any advice would be greatly appreciated.
     
  2. jollyrodger

    jollyrodger Funster Life Member

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    Hi don't know about the kit you have ,but I used 3 artic case fans ,bonded with sikaflex to top vent .
    Used a 12v dimmer switch as for led lighting .
    Picked up a feed from 12v load side of solar panel regulated ,and also drilled switch box and fixed in a 12v alarm flashing LED light from a m/bike to remind me its on .
    Total cost £15 or there abouts was going to post some pics up on fun ,but different folks different strokes :)
     
  3. Nirvanauk

    Nirvanauk Funster

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    @JollyRoger thanks for that. I would appreciate some pics if possible.
    Cheers.
     
  4. jollyrodger

    jollyrodger Funster Life Member

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    IMG_20150801_104839.jpg IMG_20150801_104907.jpg
    Can’t find the pics I took as I built it so took these just now.

    Re the fan wires mine had a clear plastic 4 pin plug on ,which i snipped.

    Then tested 12v for direction of fan ,cant remember colour and Top vent now sealed in place !

    Snipped what I didn’t want .connected all to 12v and tested the lot and only pulling less than 1 amp.

    Then buttoned it all into the van.

    Works well.

    Hope this helps :)
     
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  5. Nirvanauk

    Nirvanauk Funster

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    Thanks for that.
     
  6. jollyrodger

    jollyrodger Funster Life Member

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  7. mitzimad

    mitzimad Funster

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    we burnt one out by guessing wrong which wires to use and found a fan with just two wires
     
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  8. Yorick

    Yorick Funster

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    Can I ask where the original thread is as I'm having trouble with mine >
     
  9. John Laidler

    John Laidler Funster

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    As already mentioned, these fans don't run backwards if you connect the wires wrongly - they have a tendency to go quietly phut. :( They have electonics in them which don't take kindly to wrong polarity, or at least the two I burned out did :whistle: but there may of course be some protected by diodes.
     
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  10. Nirvanauk

    Nirvanauk Funster

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    @Yorick I can't find the actual thread I was referring too but if you do a search for fridge vent fans or fridge fans it takes you to the right area.
     
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  11. John Laidler

    John Laidler Funster

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    I'm not sure if you need to adjust the fan speed. As a solution it will work of course and it does mean you can turn them down to make them quieter but I would have thought some sort of temperature sensing would be better as it would work automatically if you were away during the day - which is exactly when you need it to work as it will be hotter. A simple battery driven room thermostat should do the job though no doubt there are other solutions.
     
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  12. jdk62

    jdk62 Funster

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    Wonder why manufacturers don't fit them as standard.....?
     
  13. Robert Clark

    Robert Clark Funster Life Member

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    Apparently Dometic sell them as an accessory according to their engineer who I met in the week - he said you only need them when it's over 25deg
    He also mentioned how important it is to have the van level as the fridge can stop working or be less effective as there is no pump to circulate the coolant - it's all gravity fed
    You learn something new every day !
     
  14. jollyrodger

    jollyrodger Funster Life Member

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    Correct and Tilt Tollerent to 6%
     
  15. maxi77

    maxi77 Funster

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