Club 80-90 Forums

I found this relay under the drivers seat




Googling the numbers this is what it is http://www.rallylights.com/hella-hl8710 ... acket.html" onclick="window.open(this.href);return false;

And I noticed that mine is missing the fuse

So my question is, what does it do, and because the fuse is missing does it mean it's not doing what ever it should be?

Any help much appreciated

Thanks

You will have to trace the wires to find out what it is connected to, it is only 15A rated so I doubt that it is a split charge relay. Previous owner addition so it's anyone's guess.

but am i right in thinking, that because its missing the fuse, its not doing what ever it should be?

That is where my VW fitted split-charge relay is fitted and is about the same size.

As you say.....no fuse so it won't work.
I'm guessing that if this turns out to be a split charger the fuse just keeps blowing because 15amps isn't adequate.

Martin

California Dreamin wrote:As you say.....no fuse so it won't work.
I'm guessing that if this turns out to be a split charger the fuse just keeps blowing because 15amps isn't adequate.

Martin

Would make sense if it's the split charge, as currently the 'leisure' battery is only charging via a solar panel

Will try putting a fuse in it tomorrow. Could I put a higher amp fuse in?

I don't know what people are thinking when they fit a 15amp relay, 15amp fuse, on a circuit that will often pull mid 30's amps on first start with a discharged leisure battery.
It's also rather worrying to see wiring routed through holes without grommets or at leased being taped.
Ditch the 15amp relay....fit a decent quality 40amp (as a minimum) and fuse at 30amps Check the main feed wires are also 30amp plus and it might just work.

http://www.autoelectricsupplies.co.uk/p ... ategory/36" onclick="window.open(this.href);return false;

http://www.autoelectricsupplies.co.uk/p ... ategory/62" onclick="window.open(this.href);return false;

http://www.autoelectricsupplies.co.uk/product_list/157" onclick="window.open(this.href);return false;

Martin

California Dreamin wrote:I don't know what people are thinking when they fit a 15amp relay, 15amp fuse, on a circuit that will often pull mid 30's amps on first start with a discharged leisure battery.
It's also rather worrying to see wiring routed through holes without grommets or at leased being taped.
Ditch the 15amp relay....fit a decent quality 40amp (as a minimum) and fuse at 30amps Check the main feed wires are also 30amp plus and it might just work.

http://www.autoelectricsupplies.co.uk/p ... ategory/36" onclick="window.open(this.href);return false;

http://www.autoelectricsupplies.co.uk/p ... ategory/62" onclick="window.open(this.href);return false;

http://www.autoelectricsupplies.co.uk/product_list/157" onclick="window.open(this.href);return false;

Martin

Thanks for your help, will have a good look at it tomorrow and let you all know how i get on. Just out of interest, why are grommets so important?

stucox14 wrote:

California Dreamin wrote:I don't know what people are thinking when they fit a 15amp relay, 15amp fuse, on a circuit that will often pull mid 30's amps on first start with a discharged leisure battery.
It's also rather worrying to see wiring routed through holes without grommets or at leased being taped.
Ditch the 15amp relay....fit a decent quality 40amp (as a minimum) and fuse at 30amps Check the main feed wires are also 30amp plus and it might just work.

http://www.autoelectricsupplies.co.uk/p ... ategory/36" onclick="window.open(this.href);return false;

http://www.autoelectricsupplies.co.uk/p ... ategory/62" onclick="window.open(this.href);return false;

http://www.autoelectricsupplies.co.uk/product_list/157" onclick="window.open(this.href);return false;

Martin

Thanks for your help, will have a good look at it tomorrow and let you all know how i get on. Just out of interest, why are grommets so important?

Because you have live wires that could chafe through causing a 'dead short' to the cars bodywork with the potential to cause an electrical fire.

Martin

Hi All

It was the split charge!

Leisure battery now showing 13.9v when engine running!

With the same relay & wiring.....keep a close eye on it, because as I say, it's really not man enough to be reliable.

Martin

Mine has been okay for 10 years, fitted by VW if it's good enough for them......

Mine too!

Mine got hot. Blew a few fuses along the way and then finally melted one and partly itself. Upgraded soon afterwards. Running the TV and Propex all night was dragging the battery right down I suspect.

Since fitting the ammeter display I have on occasion had over 50A flowing into the leisure immedistely upon start up, starts dropping pretty quick but that's still a heavy load; depends how much stick I give the leisure battery between runs in the van. I suppose another battery in tandem wouldn't go amiss, on the 'list'

Titus A Duxass wrote:Mine has been okay for 10 years, fitted by VW if it's good enough for them......

Ideed....but that wasn't put there by VW! and if it had been it would have been at least a 30 not 15amp relay....wiring would also have been sleaved...and we are still talking 'minimum' requirement at that.

Martin