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Overlander RC6-VSR

Out of the box problem

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Stearman6522/11/2018 12:56:32
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I took delivery of mine late yesterday, unpacked it to make sure everything was included. This morning I spent an hour re-reading the manual which I had read before buying, then plugged in the AC mains lead, result, there was a puff of smoke, a flash & bang from the plug, which burned my thumb, & the MCB for the ring main tripped. Did I do something wrong? surprise

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Frank Skilbeck22/11/2018 15:45:16
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Looking at the picture it looks like there was something on the outside of the plug that shorted the live and neutral pins.

Nigel R22/11/2018 15:56:44
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Some kind of cleaner still damp, on the 4-way? Spilled drink? Something on your hand?

It certainly looks external to the plug and 4-way.

I don't think the problem is with your charger.

Denis Watkins22/11/2018 16:56:32
3671 forum posts
173 photos

Definate, as the lads say, a thin strand of cable clipping maybe.

Those are classic burn marks between the plug and socket

Your charger should still be fine BTW, as the Earth trip is rapid

Edited By Denis Watkins on 22/11/2018 16:57:52

Stearman6522/11/2018 17:00:40
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The charger smells burned, the flash on the plug & socket block came from the fuse in the plug & that's what burned my thumb. I tested the socket block after the event & it is fine, it was feeding our phone at the time of the happening.

I informed the seller & he apologised & offered to replace it. As I had lost confidence in it I have chosen a Sky RC E660 which has a similar spec'.

Edited By Stearman65 on 22/11/2018 17:05:26

Nigel R22/11/2018 17:12:51
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Ah. New information.

If an internal fault has cause the MAINS fuse to blow, you don't want to see that unit ever again.

Send it back, with photos of thumb and 4 way.

Martin Harris22/11/2018 17:40:28
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How on earth did your thumb get burnt - did the flash burn through the plug casing? I thought plug fuses were designed to contain any flash (sand filled) so there must be something seriously amiss. What was fuse rating?

Stearman6522/11/2018 18:38:44
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Posted by Martin Harris on 22/11/2018 17:40:28:

How on earth did your thumb get burnt - did the flash burn through the plug casing? I thought plug fuses were designed to contain any flash (sand filled) so there must be something seriously amiss. What was fuse rating?

As the plug was inserted into the block, there was a flash & bang & what I assume was a metallic spark from the fuse compartment hit my thumb. I don't know what the fuse size was & I'm not going to open the compartment to check. But the block has an internal surge suppressor which didn't cut the power, as the supply to the phone transformer was still intact when it was restored. From the smell from the charger, the fault must be internal. In my working life I was a commercial Refrigeration Engineer & latterly a Refrigeration Projects manager, so I know when something ain't right. The fault is in the charger!!!

I have checked Overlander's web site, & this is in their policy statement

(Generally larger bulk quantities of batteries are assembled at our facilities in China. This invariably takes place to strict UK Overlander requirements and specifications and all suppliers are inspected thoroughly. We take pride in visiting our Chinese suppliers and partners on a regular basis which enables us to be confident that all goods produced for us match the quality of our "home grown" products. We are also keen to ensure that there are good working conditions and living standards for these distant workers.)

I assume this also applies to their chargers? Read what you will into that.

Tom Sharp 222/11/2018 20:47:49
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As the charger is being replaced this thread is now pointless. smiley

Martin Harris22/11/2018 22:24:32
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Posted by Stearman65 on 22/11/2018 18:38:44:
Posted by Martin Harris on 22/11/2018 17:40:28:

How on earth did your thumb get burnt - did the flash burn through the plug casing? I thought plug fuses were designed to contain any flash (sand filled) so there must be something seriously amiss. What was fuse rating?

As the plug was inserted into the block, there was a flash & bang & what I assume was a metallic spark from the fuse compartment hit my thumb. I don't know what the fuse size was & I'm not going to open the compartment to check. But the block has an internal surge suppressor which didn't cut the power, as the supply to the phone transformer was still intact when it was restored. From the smell from the charger, the fault must be internal.

I agree that the fault is likely to be in the charger but my concern is why the plug allowed a slug of molten metal to be ejected. Surely the fuse should have ruptured safely internally and not allowed the external components to vaporise? It suggests to me that the fuse might not be correctly specified and as there's no way that an arc should strike between the live and neutral pins at 250v then those marks appear to be from either the fuse ends or their mountings although they are well out of line with any transversely mounted fuse that I've come across.

I must say that far from being reluctant to inspect the fuse compartment, I wouldn't rest until I could work out why such a dangerous situation developed. I've blown plenty of fuses in my time but never seen such a result.

Stearman6522/11/2018 22:40:55
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Posted by Martin Harris on 22/11/2018 22:24:32:
Posted by Stearman65 on 22/11/2018 18:38:44:
Posted by Martin Harris on 22/11/2018 17:40:28:

I must say that far from being reluctant to inspect the fuse compartment, I wouldn't rest until I could work out why such a dangerous situation developed. I've blown plenty of fuses in my time but never seen such a result.

As the item was fresh out of the box, from a supplier I haven't used before, I didn't want to jeopardise any possible warranty claim by disturbing the fuse carrier. Hopefully the dealer will be able to supply a manufacturers report on the failure, which I will ask for, but I'm not holding my breath. I'm just glad it happened while the block was at floor level, not on the bench where it could have hit me in the eyes..

Stephen Smith 1422/11/2018 23:05:32
145 forum posts

Personal injury claim, where there's a blame there's a claim.

Martin Harris23/11/2018 00:28:48
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I always wince when I hear that expression. Any compensation for an injury should be seen as going some way to making up for suffering and loss - not an opportunity to make money for claimants and worse, their legal representatives.

Thank goodness that S65 (Eric?) was only slightly injured - damage to eyesight would be devastating to anyone and possibly even more so to us in our hobby. Serious thumb injury would also do RC flyers no good as well!

Edited By Martin Harris on 23/11/2018 00:34:07

Stearman6523/11/2018 05:51:35
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Posted by Stephen Smith 14 on 22/11/2018 23:05:32:

Personal injury claim, where there's a blame there's a claim.

It looked worse than it felt once I'd washed the flash smoke off, the socket block came off worst.

Stearman6523/11/2018 05:53:47
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769 forum posts
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Posted by Martin Harris on 23/11/2018 00:28:48:.

Serious thumb injury would also do RC flyers no good as well!

There's always single stick to fall back on?

wink

 

 

.

 

Edited By Stearman65 on 23/11/2018 05:55:14

Stearman6528/11/2018 14:07:28
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769 forum posts
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The replacement for the faulty Overlander charger arrived this morning. Because I had lost confidence in the OL it was exchanged for a Sky RC E 60 AC/DC 60W, which was slightly more expensive than the OL but the dealer waived the extra cost. After unpacking it (I had previously read the manual) I plugged in the mains power supply. All was well, the screen lit up & all appears as it should.yes

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