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Kingham Step Fuse gone

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Cymro
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Kingham Step Fuse gone Empty Kingham Step Fuse gone

Post by ymfb1 Mon Apr 15, 2019 4:49 pm

This morning we left early and popped down to the coast for a dog walk and breakfast.  Before we left the van was connected to the mains, which I obviously unplugged before driving off.

When we arrived 1-1/2 hours later the step wasn’t working.  

After we returned I checked it again both with and without mains, nada.  The No4, 10 amp blade fuse has failed, so I “borrowed” another 10 amp fuse and now it works.  No problem, no grinding, no noise, perfect.

So what would cause the fuse to blow ?

Is there a way to lubricate the step without attracting grit and dust ?

Should I be doing something other than stocking up in 10 amp blade fuses ?

Thanks in advance.
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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by Cymro Mon Apr 15, 2019 5:53 pm

ymfb1 wrote:
Is there a way to lubricate the step without attracting grit and dust ?

Can't advise as to principal question but am anxious to see replies to above supplementary question, as underside of my step is coated in underseal and I've no idea how to lubricate it. 

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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by sylvester1954 Mon Apr 15, 2019 8:56 pm

I've been advised before now never to "lubricate" the step as that will actually attract grit and gravel. Regularly brush the step and power hose it when and wherever you can.
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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by ymfb1 Mon Apr 15, 2019 10:26 pm

sylvester1954 wrote:I've been advised before now never to "lubricate" the step as that will actually attract grit and gravel. Regularly brush the step and power hose it when and wherever you can.
This has been my approach, although I don’t pressure wash the step.

Someone suggested silicone spray, but I’d rather avoid any lubricant which attracts dirt.  Maybe silicone doesn’t as much as oil, but I think I’d prefer to keep to manufacturers recommendations.
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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by Cymro Tue Apr 16, 2019 8:45 am

Thanks Sylvester1954. That must be why I’ve never done it!!
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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by Weegie Tue Apr 16, 2019 9:56 am

Reading the wiring diagram on page 7-34 of our Kingham Owners manual it looks, to me, like the fridge may be on the same circuit. I hesitate to say it, but is your fridge OK?

It's not the clearest wiring diagram I've ever seen, and, in all likelihood I'm misreading it, so, please, please, check for yourself before taking any action - don't just take my word for it!

Apologies if this sends you off on wild goose chase.

Tommy.
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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by ymfb1 Tue Apr 16, 2019 11:18 am

Weegie wrote:Reading the wiring diagram on page 7-34 of our Kingham Owners manual it looks, to me, like the fridge may be on the same circuit. I hesitate to say it, but is your fridge OK?

It's not the clearest wiring diagram I've ever seen, and, in all likelihood I'm misreading it, so, please, please, check for yourself before taking any action - don't just take my word for it!

Apologies if this sends you off on wild goose chase.

Tommy.
Tommy,

The fridge seems fine, I am just going to keep a watching brief.  I’m going to see if I can easily strip the step and go from there.
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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by Roopert Tue Apr 16, 2019 1:12 pm

Weegie wrote:Reading the wiring diagram on page 7-34 of our Kingham Owners manual it looks, to me, like the fridge may be on the same circuit.

Agreed - the wiring diagram is imprecise, and therefore impossible to read with accuracy. But there is definitely a link between the two. I suspect that, by design, the link to the fridge supply is intended to trigger the step retraction. Is it possible that there has been a miswiring there, and a combination of the fridge 12V being on and a slightly sticky step mechanism combine to blow the fuse?

It should be easy enough to test - remove the offending fuse and see if the fridge still works Ok on 12V.

TBH I think it's unlikely to be that, but it may be worth checking just in case...
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Kingham Step Fuse gone Empty Re: Kingham Step Fuse gone

Post by inspiredron Tue Apr 16, 2019 2:10 pm

Some time ago my step refused to retract though it would come out. It was dirt in the limit switch which prevented the contacts from changing over to retract. Your step is very different but worth checking that.

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