Troubleshooting Carver Cascade

[RAW]

Have a Carver Cascade in the Mercedes, seems to work alright on 240V but can't get it to work on Gas and not sure where to start. There is 12V Going to Unit and Gas Supply but not sure how the ignition would work.
Here's the control

 

[Squiffy]

Dont know if this might help Raw, but it's been a good many years since I worked on a cascade, when I used to own a Swift Challenger caravan .

 

[Squiffy]

I seem to remember vaguely that dust rust and crap had fallen over the burner and was stopping the ignition of the gas. Phil

 

[Nabsim]

Is it like gas fridges with spiders webs stopping them as well? Clean burner and flu as Phil mentions?

 

[Millie Master]

Just like Phil and Nabism I had similar problems with dirty igniters and gas jets, hopefully all that yours needs Robert is a darned good clean, I also pricked out the jet using a very fine bit of brass wire. Can you actually hear the piezo igniter working which should be a click, click, click sound?
Phil

 

[SquirrellCook]

All this hassle pushed me to go eberspacher.

 

[n brown]

luckily ,getting to the burner outside is easy. often a clean of this and the electrodes might do it

 

[RAW]

Just like Phil and Nabism I had similar problems with dirty igniters and gas jets, hopefully all that yours needs Robert is a darned good clean, I also pricked out the jet using a very fine bit of brass wire. Can you actually hear the piezo igniter working which should be a click, click, click sound?
Phil

No click or anything - No lights on the control on 12v - whereas there is on 240V
Think I need to go through the wiring again and then give it a good clean by accessing from outside as advised
Thanks for all the help guys

 

[Millie Master]

Check the fuse first Robert

 

[Squiffy]

Check the fuse first Robert

Good point Phil, something I tell other people to do first, but I spend most of the day chasing faults only to find out it was a fuse all along Phil

 

[Millie Master]

Good point Phil, something I tell other people to do first, but I spend most of the day chasing faults only to find out it was a fuse all along Phil

Sad but oh so very true!!

 

[david how]

hi. i don't have the 'rapid'. mine is the '2' and the gas ignition control is the brown box. 3 lights, red for fault, amber for ignition, green for working. never ever failed. even on electric 700watt element works fine. don't give up on it. good luck