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Subject Topic: Removing mcb Post Reply Post New Topic
Personllangatwg
09/4/2013 at 8:17am
 Location: Sited tourer at Bronllys in Brecon
 Outfit: Elldis Super sirroco View llangatwg's Profile View Profile   Reply to llangatwg Reply   Quote llangatwg Quote  
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I want change the 10amp mcb as it is nuisance tripping and and is troublesome trying to reset when there is no power on the caravan.

My problem is that in two corners there are plastic dome heads covering what I guess is the screw.

How do I get this off with out damage?

Cheers.
http://www.flickr.com/photos/llangatwgnedd/8634248418/


Personjohnjory
09/4/2013 at 2:44pm
 Location: Lowestoft Suffolk
 Outfit: Skoda Superb DSG + Elddis Affinity 550 View johnjory's Profile View Profile   Reply to johnjory Reply   Quote johnjory Quote  
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try:
1) Take off the front of the unit by undoing the 4 Xhead screws.

2) At the bottom of the row of mcbs, there should be some screws that hold the 'bus bar'. This connects the mcbs to the rcd. Undo these and drop the bus bar out.

3) Just behind where the bus bar was, underneath the mcb, you should see a small rectangular 'eye'. Put the end of a screwdriver in this and gently prize it down while pulling the lower part of the mcb forward. It should now release from the 'din rail' and lift out.


Personjohnjory
09/4/2013 at 2:44pm
 Location: Lowestoft Suffolk
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PS

Replacing the new mcb should be a matter of clipping it onto the din rail, then replacing the bus bar and front.


Personjohnjory
09/4/2013 at 2:46pm
 Location: Lowestoft Suffolk
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PPS

Can you post a picture with the front off?


PersonPeridot
09/4/2013 at 10:42pm
 Location: South Wales
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I think the OP is saying that there is something covering the screw heads on two corners of the enclosure. It's not very clear from the photo but the top left one appears to be a different colour.

If it's just a plastic cap I'd use a small flat blade screwdriver to prise it off - it doesn't really matter if it's damaged. It could also be that these screws have been replaced with a 'security' head type in which case you'd need the appropriate bit to undo them.

Are you sure it's 'nusiance' tripping and not a fault somewhere in the van's wiring?


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Personjohnjory
09/4/2013 at 11:11pm
 Location: Lowestoft Suffolk
 Outfit: Skoda Superb DSG + Elddis Affinity 550 View johnjory's Profile View Profile   Reply to johnjory Reply   Quote johnjory Quote  
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"I think the OP is saying that there is something covering the screw heads on two corners of the enclosure. It's not very clear from the photo but the top left one appears to be a different colour....."

I see what you mean now. Can't say that I've seen anything like that on anything that does not have an IP rating.

I agree, just try and 'dig' them out.


Personllangatwg
10/4/2013 at 7:51am
 Location: Sited tourer at Bronllys in Brecon
 Outfit: Elldis Super sirroco View llangatwg's Profile View Profile   Reply to llangatwg Reply   Quote llangatwg Quote  
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Thanks for the replies.

Yes it is the plastic dome covers in the corner, just have a go at gouging them out.

Done a search on all caravan forums about F&S mcb's and it seems the 10amp one are prone to faulting, cheap Chinese junk.

Haven't got the caravan with me, as it is sited, but my stepson is using it this week and so far it hasn't tripped.

Had trouble re setting it with the power lead disconnected.

New mcb ordered from Leisureshop direct


Personllangatwg
10/4/2013 at 7:55am
 Location: Sited tourer at Bronllys in Brecon
 Outfit: Elldis Super sirroco View llangatwg's Profile View Profile   Reply to llangatwg Reply   Quote llangatwg Quote  
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Thanks John for information on how to remove the mcb.



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