12V INSIDE FRIDGE FAN

ONE PLUS ONE · Member

12V INSIDE FRIDGE FAN

gdayjr · Senior Member

Did the fan come with any sort of electrical lead?

Rob Driver · Guru

A quick google bought this up,

There are probably other kits around.

australianmade.com.au/licensees/3dprintrv/klevacool-caravan-fridge-internal-fan-kit

You could possibly credit the gp fan with Jaycar.

Whenarewethere · Guru

If you are just trying to get some cold into other areas of the fridge. Down the page is an idea which may help you for passive cooling. It works extremely well, apart from the extra insulation.

https://thegreynomads.activeboard.com/t65059593/extra-fridge-insulation-wattage-test/

Rob Driver · Guru

Whenarewethere wrote:
If you are just trying to get some cold into other areas of the fridge. Down the page is an idea which may help you for passive cooling. It works extremely well, apart from the extra insulation.

https://thegreynomads.activeboard.com/t65059593/extra-fridge-insulation-wattage-test/

When providing a link to relative information why cant you and some others just paste the link as a clickable connection.

It is not hard and it makes it so much easier when the info is on a clickable link.

Thank you

Rob Driver · Guru

Like this wawt

thegreynomads.activeboard.com/t65059593/extra-fridge-insulation-wattage-test/

-- Edited by Rob Driver on Thursday 11th of November 2021 09:38:34 AM

Are We Lost · Guru

Or instead of showing the link, type a description.

Greynomads discussion on fridge cooling

Whenarewethere · Guru

All other forums I use do it automatically so I am in the habit of things working.

But if you press & hold on the text you get a link anyway.

Mike Harding · Guru

Whenarewethere wrote:
But if you press & hold on the text you get a link anyway.

Not on my computer you don't.

johnhgh · Member

ONE PLUS ONE wrote:
Hi have bought a 12v fan from Jaycar but need to find out how to wire it up. I have tried to find a professional but they are all to busy and I am taking off next week. I tried googling but couldnt find an appropriate video. Does anyone have some easy helpful instructions.
Cheers Kim

I wired mine to the powered side of the fridge light inside the fridge, then put a switch in the circuit to the fan in case I want to turn it off.

Cassie63 · Senior Member

Double sided tape my computer fan to the side wall of the fridge so it blows across the back and around, ran the wires down the drain and threaded the wires out around the back and connected to the control box.

TimTim · Guru

ONE PLUS ONE wrote:
Hi have bought a 12v fan from Jaycar but need to find out how to wire it up. I have tried to find a professional but they are all to busy and I am taking off next week. I tried googling but couldnt find an appropriate video. Does anyone have some easy helpful instructions.
Cheers Kim

Hi Kim,

Firstly Im assuming that you have probably bought one of the 5/12 volt computer fans, well we tend to call them computer fans but they can be used for many applications. I also assume that you want to install it behind the external fridge vent.

Did you buy a temperature sensor to go with it so that it turns on and off at a set temperatures?

https://www.jaycar.com.au/temperature-switch-kit-b048/p/KG9140?pos=1&queryId=b25e8de1aafc2dfcc8753a81bb0865aa&sort=relevance

If you explain what you are trying to do to the guys at Jaycar they will generally help you in what connectors that you need. And how to wire the temperature switch in. Do you have a soldering iron?

The fan will generally have 3 or 4 wires but you will only need the + and - or red and black. The yellow wire is a signal wire which would generally display the fan speed on a computer screen.

This video shows the typical connection where you will need the connect.

https://www.youtube.com/watch?v=urVLYzf-7jA

Tim

-- Edited by TimTim on Thursday 11th of November 2021 03:48:01 PM

-- Edited by TimTim on Thursday 11th of November 2021 03:58:40 PM

-- Edited by TimTim on Thursday 11th of November 2021 04:30:43 PM

TimTim · Guru

Further to my previous post if it is a fan that you are locating behind the grill then they use such low power that there would be no harm in wiring it permanently so that it runs whenever the fridge is on. That would be dependent on the power that you have as and the power consumption of the fan. Some use 220 milliamps so over 24 hours that is 5.280 amps.

Tim

Whenarewethere · Guru

A couple of Noctua quiet low power fans:

NF-A8 ULN 80mm 34.8m³h 0.05amp max, 1.2ah/24h

NF-A12X25 ULN 120mm 55.6m³h 0.05amp max, 1.2ah/24h

TimTim · Guru

Whenarewethere wrote:
A couple of Noctua quiet low power fans:
NF-A8 ULN 80mm 34.8m³h 0.05amp max, 1.2ah/24h
NF-A12X25 ULN 120mm 55.6m³h 0.05amp max, 1.2ah/24h

Yep, if Kim has one with a low current like those then we could help her to wire it straight in. She has already bought the fan so if she could post the link then we can look at what she has. Even if she wires it straight in temporarily and then wires in a temperature sensor later.

Noctua are good fans I have two in my desktop plus a couple of Cougars and a CoolerMaster.

Tim

Whenarewethere · Guru

I've used about a hundred of them is a 3D render farm. Another 3 in a UPS going non stop for a decade.

The Travelling Dillberries · Guru

Are any of these fans water proof as she clearly says "inside fridge fan".

TimTim · Guru

Until Kim responds then we do not know exactly what she is proposing to do. Inside fridge fan could mean internally inside the fridge or internally behind the fridge. We are assuming she means internally behind the fridge and no the fans are not waterproof.

Whenarewethere · Guru

Noctua NF-F12 industrial PPL-2000 IP67 121.8m³/h 0.1amp, 2.4ah/24h

Certified IP67 water- and dust protection The motor and PCB of the IP67 version are completely cast in a special, highly heat conductive resin that combines thoroughgoing protection and effective motor heat dissipation. Complying with the ingress protection rating IP67, this fan is not only fully dust tight but also completely waterproof up to 1m water depth.

Cassie63 · Senior Member

I have 3 fans, 1 x inside, 1 x at top vent and 1 x on coil thingy

Warren-Pat_01 · Guru

Hi Kim,
When I had our Eagle camper, I fitted Jaycar two fans behind the 3way fridge - the lower one to blow (up behind the fridge), the higher one to suck the air out & through the top vent.
I connected them together using the reverse polarity on one, correct on the other & fed two wires out of the lower fridge vent & when required (usually on a hot day) I connected them to a small solar panel (10w) so they ran while the sun was shining on that side of the van. Didn't have to turn them off as the sun set.

You can get more complicated by using a thermocouple to switch the fan(s) on at a set temperature but then you have to find a suitable location to mount it.

Warren-Pat_01 · Guru

Oops sorry Kim,
I've just read your message again - sorry that I miss read it 2 days ago. However unless you fit a manual switch to the fan, you'll need a low temp thermocouple to turn the fan on.
Unless you can run a pair of small wires in via the door seal, you'll have to drill a small hole in through the side, top of the fridge & connect it to a battery source.

ONE PLUS ONE · Member

Thank you to everyone for your replies. Sorry for not responding earlier as i was away with the girls camping.
Until I feel more confident I have attached the fan wires (2 only red /blue) to a cigarette lighter plug. The wires are very, very fine so have it coming out through the door and luckily have the socket on the bench above. Works like a dream. I do like some of the other ideas above and will look at them further down the track. I do have a track above my fridge on the exterior of the van so have it shaded when necessary.
Thank you again. As I have said before, I love this site.

ONE PLUS ONE · Member

I forgot to mention that I zip tied the fan underneath one of the wire shelves so it wont get wet etc.
I am a bit slow technically so dont know how to copy what one of you has written eg: TimTim to reply only to that one persons suggestion.

TimTim · Guru

Hi Kim,

No need apologies needed. I haven't even learnt to use all the tools on this site yet. There are two buttons to the top right on a post which you can click to reply or quote what a person says.

At least now you have a temporary solution and that we know it is a fan inside the fridge That you were looking to install. I have no idea which Jaycar fan you purchased but some are IP54 and one is IP55, most have no specifications.

Rob Driver supplied a good link to fridge fan kits which shows how to run a cable to the back of the fridge which is something you can look at later. Also placing fans behind the external vents helps along with getting rid of all the built up grime.

Good luck

Tim

-- Edited by TimTim on Monday 15th of November 2021 08:55:36 PM

ONE PLUS ONE · Member

TimTim wrote:
Hi Kim,
No need apologies needed. I haven't even learnt to use all the tools on this site yet. There are two buttons to the top right on a post which you can click to reply or quote what a person says.
At least now you have a temporary solution and that we know it is a fan inside the fridge That you were looking to install. I have no idea which Jaycar fan you purchased but some are IP54 and one is IP55, most have no specifications.
Rob Driver supplied a good link to fridge fan kits which shows how to run a cable to the back of the fridge which is something you can look at later. Also placing fans behind the external vents helps along with getting rid of all the built up grime.
Good luck
Tim
I hit "Quote" Or should I have hit "Reply" ? "Thanks Tim. Yes I shall when I get a chance will put two on the outside of the fridge.
Thanks again all and Merry Christmas. I know its a bit early.

-- Edited by TimTim on Monday 15th of November 2021 08:55:36 PM