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Hi,

We've just bought a 1991 Coachman 460/4. The water system has got us scratching our heads. On our last caravan when you operated a tap, a microswitch operated the pump, simple. On the Coachman there is a seperate switch on the 12v panel for the pump, however this leaves the pump running continuously. There is an adjustable pressure switch in the system near the water inlet...........what does this do?

Also it seemed to take forever for the air to bleed out of the system and once bled the water pressure seems a bit poor.

Any suggestions or advice greatly appreciated!

Thank you for that Ian, I'll give it a go. I didn't have any instructions for the pressure switch. It was driving me barmy having to switch off at the panel every time we turned the tap off!

Jim.

Hi. Above advice is exactly right. It does need re-setting occasionally though. We had a 1991 Abbey Somerset with the same system. I've got all the manuals if they are of use, drop me an email...

pten2106 at yahoo.co.uk

...and I'll email them to you. 

from wizards site,rear of pump housing showing pressure switch.

Mine operates the same way and is setup exactly as Ian says :-)

I also have the manual, if you need a copy emailing let me know

Rgds

Tony

Thanks everyone. We're off with the van next weekend so I'll try out the advice.

A copy of the manuals would be useful if it's not too much bother    jimmanning at sky.com

Thanks again,

Jim.

The pump will run faster and pressurize the system quicker when your hooked up to mains electric, mine was ok on mains but when not hooked up and the battery was getting tired i had to adjust the pressure switch (just as micheals picture) otherwise it would run all the time as it couldn't build up enough pressure to trigger the switch, only adjust it enough to switch off otherwise when you are on mains electric it will cycle on/off causing the water to pulse.

Thanks Guy's,

Applied the advice and everything working properly now.