Can anyone tell me what this is?

[StefanoFerrari]

Hi all.
I’m new to motorhoming and bought my first motorhome 2 weeks before lockdown ?.
Can anyone tell me what the convoy controller is under the step control and what it does?
It doesn’t seem to have any power to it, but I don’t really know what I’m doing yet.
Is there something else I need to switch on to make it work?
Thanks in advance.
Steve

 

[David and Sally]

 

[davidbaldam]

Hi and welcome to FUN. Sorry can’t help but I’m sure someone will be along soon with the answer.

 

[lunarman]

Hi and welcome.

The controller looks to be a fridge fan control. This aids the fridge in cooling during hot periods. There should be a fan or 2 behind the top vent of the fridge.

It's a Brunner fridge fan control as shown here Brunner fan

 

[StefanoFerrari]

Thanks, I didn’t realise how complicated a motorhome would be. Especially an old one!

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[Landy Andy]

Does it control fans for assisting your fridge

 

[Lenny HB]

Looks like a fridge fan controller, check behind the top fridge vent to see if there are fans mounted behind it.

 

[StefanoFerrari]

Hi.
Yes there are 2 x 12v fans at the back of the fridge.
Any idea if there should be power to the controller when the hab power is on? Or all the time?

 

[Lenny HB]

Just confirmed it's a rebranded Brunner fridge fan controller.

 

[Lenny HB]

Hi.
Yes there are 2 x 12v fans at the back of the fridge.
Any idea if there should be power to the controller when the hab power is on? Or all the time?

I would expect it to be on all the time.

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[Landy Andy]

Most are wired to permanent 12v supply, as fridge is important and the fans don’t use much power.

The switch operates the different modes. Top of switch in the fan runs permanently at full speed. Middle position off no fans running. Bottom pressed in the fans are operated by a temp sensor mounted by the fans that operate the fans when they are required, and at different speeds.

 

[ambulancekidd]

 

[WynandJean]

Hello and welcome from West Midlands. ?

Wyn

 

[TheBig1]

nah, you're all wrong, it's clearly a variable speed fart extractor

 

[StefanoFerrari]

Thanks for all the replies.
I’ll get the volt meter out and figure out why there’s no power.

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[Jo662]

 

[Puddleduck]

Could it be wired so there is only power to it when the fridge is on? I don't know, just guessing but if I was to wire it up I think I would consider doing it that way ..... no fridge operation , no fan.

 

[Riverbankannie]

Thanks, I didn’t realise how complicated a motorhome would be. Especially an old one!

Good job you didn’t get a new one then !

 

[TheBig1]

Could it be wired so there is only power to it when the fridge is on? I don't know, just guessing but if I was to wire it up I think I would consider doing it that way ..... no fridge operation , no fan.

That is the way I would wire it, into the power circuit for the fridge, which is right by where the fans are fitted anyway