|
Post by daisymini on Apr 3, 2013 20:54:18 GMT
Here is my dilema:... I have 2 fridges one slightly older than the other but the same model, i cannibalised one to make one functional one... the problem i have is i took the rocker switch out of the old one put it in the new one, but on the new one the connector (chocolate bar as i call it) was melted and i didnt take note where the wires went??...duh Ive now come to wire it in and the melted chocolate box still has the 12v wires going into it and the rocker switch has black wires going to position 1 and 3.....So Im assuming that when i replace the chocolate bar i need to put a wire from the + to the middle position (2) on the rocker switch does this sound right.. ( i may have taken the + wire out some time ago and now cant remember) I think i might have made this more confusing than necessary might need to put some pics on tomorrow....
|
|
|
Post by lotusanne on Apr 3, 2013 21:09:46 GMT
Oh I really hope someone understands that Sue!!
|
|
|
Post by daisymini on Apr 3, 2013 21:23:32 GMT
Oh I really hope someone understands that Sue!! Your right Anne having just read it back it all sounds gobbledy gook...dont think anyone else will understand it!!...lol will put some pics on tomoz!!
|
|
|
Post by lotusanne on Apr 3, 2013 22:22:25 GMT
Pics would be good - but its probably also cos I wouldn't understand it no matter what!
|
|
|
Post by Firefox on Apr 3, 2013 22:44:51 GMT
If it is just two wires going into your chocolate box connector, I don't think you can go wrong. It's just an on/off switch. Take two wires out of the box and connect them to the rocker switch, it doesn't matter which way round.
If the rocker switch is illuminated and there are three or more wires going into it, there may be an earth or feed for the bulb inside the rocker switch. Then it becomes more complicated and you really need to correct the right wires to the right terminals or you could end up connecting and earth to a live via the switch which will blow the fuse on the fridge circuit.
If there are three or more wires you need to post a photo and give a more accurate description of the switch - ie is it illuminated with extra feeds?
|
|
|
Post by daisymini on Apr 4, 2013 10:33:19 GMT
1st question: is the green wire + ? 2nd question: do i need to wire from the melted chocolate bar to the middle position on the rocker switch?
|
|
|
Post by Firefox on Apr 4, 2013 11:31:37 GMT
Get a multi meter and check the voltage at the end of the green and white wires with the fridge 12V supply switched on (usually engine running via a relay). One should be earth, one should be +12-14.5V. It looks to me like the the black cable with the bare wire (also going into the choc bloc as a double feed on one connection) should go into the melted terminal side (when you replace the block). Are you sure that double wire was as originally wired - it doesn't look right. At the moment the switch does not appear to be functioning, assuming terminals 1 and 3 are the switching ones. You can check this by using a multimeter and throwing the switch to see if the voltage changes from 0 V to 12V. That's an illuminated switch and terminal 2 on the switch is probably an earth for the bulb in it. This would need to be confirmed by examining the switch, probably taking it out of the housing and looking at the markings on it to see if the centre one is marked earth, or otherwise testing with a 12V supply and multimeter to see what occurs. But my guess is that terminals 1 and 3 do the switching and supply 12V to the bulb when the switch is thrown, and the bulb needs an earth to function via terminal 2. Don't guess though... use a multimeter to confirm www.ebay.co.uk/itm/DOMETIC-ELECTROLUX-CARAVAN-FRIDGE-RED-SWITCH-ILLUMINATED-12V-FREE-P-P-/370657816871
|
|
|
Post by daisymini on Apr 4, 2013 11:50:17 GMT
The problem is Vern the fridge isnt wired up yet to the van as i wasnt sure which colour wire was the + one ie the green or the white, so i cant check anything with the multimeter until i get that part solved.
|
|
|
Post by Firefox on Apr 4, 2013 12:01:17 GMT
More information: On this one the earth connection is terminal 3 and 1 and 2 are the switching ones. The earth should be marked with the earth symbol or -ve or gnd (= ground) On this one on the picture the ground terminal is in the middle and switching is 1 and 3, but on the diagram, ground is 3 and switching 1 and 2. It's really important to identify the ground terminal either by the markings on the switch or testing.
|
|
|
Post by Firefox on Apr 4, 2013 12:07:18 GMT
The problem is Vern the fridge isnt wired up yet to the van as i wasnt sure which colour wire was the + one ie the green or the white, so i cant check anything with the multimeter until i get that part solved. Get a 12V battery or take feeds from the leisure one and wire up your fridge temporarily using an inline fuse, probably 15A they can be quite high current, (check the rating plate). Or trace the wires back to the external fridge power connection if you can. Or get a wiring diagram for your fridge (you may be lucky if you search online).
|
|
|
Post by Firefox on Apr 4, 2013 13:35:48 GMT
OK, Daisy, I think I have solved it. The white wire is the earth from the battery. That's why the switch wire from the bottom terminal goes in there (illuminated switch earth). The earth from the heating element of the fridge also goes in there, hence double connection. The green/white is the positive 12V feed and that goes to the middle terminal of the switch as you suggested. The other black wire, the feed to the heating element goes to terminal 1. The switch is wired up exactly as the yellow diagram I posted above, with the live feed going to the centre terminal. You can see how this makes the light in the switch come on when the switch is thrown I'm almost certain, this is how it works, but it would be as well to test... the switch looks a bit knackered. Is that the old one or the new one?
|
|
|
Post by daisymini on Apr 4, 2013 14:15:13 GMT
The new one lol....!! Thanks Vern i just needed things confiming as i wasnt sure so now i shall wire it and test it...cheers!!!
|
|