When should I use the 'fridge supplementary fan? - Page 3 - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #21 of 32 (permalink) Old 25-08-2016, 09:14
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Absotively Andy, 12v is only good if the fridge is down to temp,and the door is not opened to check how cold it is

Tuggs has a probe which makes good sense, I'll have to dig out his link and get one, as I didn't at the time
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post #22 of 32 (permalink) Old 26-08-2016, 00:40
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Quote:
Originally Posted by Mrplodd View Post
These fridges will always struggle when on 12 volts due to the low power input, they will work best of all on gas, followed by 230 volts.

The 12 volt operation is designed to keep the fridge "ticking over" whilst on the move between longer periods of gas or 230 volt operation. You should NEVER use the fridge on just 12 volts for any longer than absolutely essential, switch to gas or mains ASAP.

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post #23 of 32 (permalink) Old 26-08-2016, 08:18
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Is it allowed to travel with the fridge on gas???
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post #24 of 32 (permalink) Old 26-08-2016, 08:25 Thread Starter
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AFAIK it is not legal to use gas on the road UNLESS you have a Truma Secumotion type installation, if not then the gas must be switched off.....

the 12v system also has no thermostat a/c to the CC Handbook where it used to say "the thermostat is not involved so the fridge will simply get colder and colder when on 12v" but that was a few years ago when I was a member....... (probably about 25....), so may well not be correct for modern fridges.....

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post #25 of 32 (permalink) Old 26-08-2016, 08:46
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Originally Posted by robbosps View Post
That's fine unless your driving for a few hundred miles.
Providing the fridge is cool then the 12 volt supply will (or should!) maintain it, if it doesn't you COULD have a fault.

What it WONT do is cool a fridge load of food after a shopping expedition.

I have use these fridges for many years and they stay cool for the many hours of the longer western approaches channel crossings IF the door is not opened. None of them are designed to operate for any period of time on 12 volts. Gas gives the best cooling followed by 230 volts.

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post #26 of 32 (permalink) Old 31-08-2016, 16:11
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For those of you who have fitted them, could you please point me in the direction of the manual 12v in line switch you used?

My fan has decided that it should come on at temps below 35 degrees which is fine if its needed but no use if not! Therefore I need to pop a little over ride switch in the circuit.

ta

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post #27 of 32 (permalink) Old 31-08-2016, 16:57
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Hi Graham for mine I bought a small round illuminated one from Maplins, easiest to fit as they require (you guessed) a simple round hole.

These on Ebay would do the job as well.

http://www.ebay.co.uk/itm/Round-Blue...58rPdBHXgD-HXA
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post #28 of 32 (permalink) Old 31-08-2016, 17:21
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Originally Posted by Kev_n_Liz View Post
Hi Graham for mine I bought a small round illuminated one from Maplins, easiest to fit as they require (you guessed) a simple round hole.

These on Ebay would do the job as well.

http://www.ebay.co.uk/itm/Round-Blue...58rPdBHXgD-HXA
Thanks Kev

I was going to fit it inside the cavity behind an external grill so didn't want to have a hole tbh. I was thinking of something like this...

http://www.ebay.co.uk/itm/SWITCH-2A-...cAAOxygj5SmbMj

Would it do the job do you think?

ta

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post #29 of 32 (permalink) Old 31-08-2016, 17:32
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Yes, but it it is plug UGLY, all a switch does in interrupt a circuit basically, you need to do what's best for you aesthetically, works and will fit where it needs to be.

However that one looks like it's a for a lamp where the cable goes in one end and out tother, not for fastening to a wall etc.

http://www.ebay.co.uk/itm/BEIGE-ARCH...EAAOxyA9dSXVyU

http://www.ebay.co.uk/itm/Waterproof...AFxwr59qhDiAEA
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post #30 of 32 (permalink) Old 31-08-2016, 17:39
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Quote:
Originally Posted by Kev_n_Liz View Post
Yes, but it it is plug UGLY, all a switch does in interrupt a circuit basically, you need to do what's best for you aesthetically, works and will fit where it needs to be.

However that one looks like it's a for a lamp where the cable goes in one end and out tother, not for fastening to a wall etc.

http://www.ebay.co.uk/itm/BEIGE-ARCH...EAAOxyA9dSXVyU

http://www.ebay.co.uk/itm/Waterproof...AFxwr59qhDiAEA
No one will see it Kev as it will be behind the grill. As long as it works I'm happy. It wont be fastened to a wall tbh. I am happy for it to lie or be double sided taped in place.

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