Master switch not working

Aug 26, 2019
Visit site
Hi everyone. We have just returned from a weekend away where we had no electric hook up. My caravan is a 2007 lunar clubman and we ran the water heater and fridge off gas and used the master switch for water pump and lights. Everything fine for first 2 nights and on the last day we had no power through the master switch at all, couldn't get the battery meter too read anything not even flat. The battery however powered the motor mover and I used it for about 10 minutes too get the van on the drive at home. So if the battery isn't flat why couldn't I get 12V power into the van? I was checking the meter a few times during the weekend and the battery was good. Any help would be great
Oct 3, 2013
Visit site
Could be a ruptured battery fuse (30Amp rating),This fuse is located near to the battery in the positive wire.
The motor mover is connected directly onto the battery before the fuse and is therefore not affected by this fuse rupturing.
I'd look for this fuse first and check it to see if it's intact or not.
Jan 19, 2002
Visit site
Try also the possibility of a fuse on the main distributor unit - possibly a 20amp blade fuse and you should be able to see if the 'wiggle in the middle' between the two blades is intact.


Latest posts