Fridge Internal Fan

Discussion in 'Fridges & Ovens' started by Robert Clark, Jul 18, 2016.

  1. Robert Clark

    Robert Clark Funster Life Member

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    Hi Guys

    Has anyone ever fitted a fan inside their fridge?

    If so how did you power and switch it

    I have already fitted external vent fans, however I think that an internal fan would help maintain an even temperature in the fridge.

    Thanks
     
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  2. tonyidle

    tonyidle Funster

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    Don't know of anyone doing so but if you want to try it out there's a route in for wires where the thermostat sensor(s) enter. I'd use mini screened lead (mic lead) because it's round in section.
     
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  3. Robert Clark

    Robert Clark Funster Life Member

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    The thermostat cable exits behind the cooling element.

    But the light power cable exits further down !

    Step 1 - cables in
    Complete !

    image.jpeg
     
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  4. tonyidle

    tonyidle Funster

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    I haven't had a fridge as new as that :)
     
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  5. Robert Clark

    Robert Clark Funster Life Member

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    Job complete

    Fitted a digital thermostat
    The left hands one is for the internal fridge fan and the right hand one is for the external vent fans
    It's showing the internal temperature of the fridge as 26 deg as the fridge has only just been turned on.
    image.jpeg

    I fitted the fan at the top of the fridge. A 120mm PC cooling fan fits perfectly above the top shelf. I fixed it to the ceiling of the fridge using self adhesive cable tie holders.
    The fan is fitted with a finger guard.

    image.jpeg

    I fitted the sensor for the thermostat about half way down the fridge, just above the light

    image.jpeg

    The fan is set to run when the fridge temperature is above 8 degrees and should help maintain an even temperature throughout the fridge.
     
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  6. Minxy Girl

    Minxy Girl Funster Life Member

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    I thought the idea of a fridge was to have different temperatures at different levels as some food needs to be kept cooler than others ...
     
  7. Robert Clark

    Robert Clark Funster Life Member

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    We've got a fan in our Neff integrated fridge at home.
    We've found in our Dometic fridge that the bottles in the door are not particularly cold and that the natural air circulation is poor. It's a large, tall fridge with only a relatively small cooling element.
     
    Last edited: Jul 19, 2016
  8. John Laidler

    John Laidler Funster

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    It's a great idea and I'll be interested to see how you get on. The big unknown is how the fan will cope in the environment.

     
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  9. Robert Clark

    Robert Clark Funster Life Member

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    I shall report back after our next trip!
     
  10. John Laidler

    John Laidler Funster

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    I've certainly found huge differences in temperature in our fridge and the door as you say is the warmest place. My instincts are to go for a compressor fridge but I think they don't make them in large sizes which you probably need for your MH.
     
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  11. Robert Clark

    Robert Clark Funster Life Member

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    Ours is a Tec Tower which has an oven built into the top of it, so upgrading isn't an option.
    The freezer is really good, it's just the fridge that's a bit weak
    Hopefully this will help
     
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  12. Minxy Girl

    Minxy Girl Funster Life Member

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    I don't know, these people with BIG fridge freezers are never happy ... I'll swap our little one for your 'troublesome' big one any day! :D
     
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  13. Clarky

    Clarky Funster

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    That's a very neat job Robert.
    Will be interested in the result after your next trip.
    Where are the two displays fitted?

    Richard.
     
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  14. Robert Clark

    Robert Clark Funster Life Member

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    The displays are fitted in the toilet cassette cupboard - the power is taken from there too
     
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  15. sdc77

    sdc77 Funster

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    We've found that the fuller the fridge the better it seems. The fan idea seems good though. Watching with interest.
     
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  16. sallylillian

    sallylillian Funster Life Member

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    I find the same, but do have many anomalies in operation. I have now moved to 4 on the scale and get closer to 6 degrees in the centre of the fridge. I am noticing a difference in temperature with some electricity supplies ( I tend to try and maintain electric if on EHU over 6 amps) but I do not have ab AC voltmeter fitted. I have the double external fan setup recomended by @Techno and it has some improvement, the concept of an internal fan is one I had not considered due to the incursion into the itegrity of the unit whilst still under warranty.
     
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  17. Lenny HB

    Lenny HB Funster

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    26 deg, sounds about right for a 8505 fridge.:ROFLMAO:

    Really Mel, you would have a 8505 you must be barking mad, Dometic's worst effort to date, I know I've got one.:LOL:

    Now trying to be serious, it will be interesting to see if it improves the performance.
    Where did you fit the external fans I assume in the bottom vent or did you manage to fit them in the top roof vent?
     
  18. Robert Clark

    Robert Clark Funster Life Member

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    Top vent, but with the temp sensor behind the bottom vent
     
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  19. Clarky

    Clarky Funster

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    Ahh yes, I can see that now. I couldn't make out what the silver thing in the foreground was.
    Very neat.

    Richard.
     
  20. Robert Clark

    Robert Clark Funster Life Member

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    Update
    Having been running overnight ( now 8:00am) the internal temp of the fridge has fallen to 7 deg and the internal fan has switched off.

    image.jpeg

    The fridge is currently set at 4/5
    Ideally I'd like an internal temp of 5 deg, which is the same as our fridge at home.

    I'll see how stable the temperature is during the heat of today and if it can maintain 7 or 8 deg I'll try setting the fridge at 5/5 (max)
     
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