Duetto Water pump not pressurising

It might just be my ignorance or maybe not.
Two weeks ago I drained down the van (Duetto)as I had assumed we weren't going to be going away overnight again till next year but we decided to get a few more weekends in before the festive season.
Loaded up the van and put about 20 litres of water in the tank turned on the gas and started my pre trip checks.
Everything was fine except the water system.
Now I only let it run for maybe five thirty second stints but although the pump is running, with the tap open there is no water flow and with the tap shut the pump keeps running (only checked for 30 seconds though).
My questions three are
Am I being impatient and need to wait longer seeing as how the Carver has been drained?
Do I needed to investigate further
Where in blue blazes is the water pump

Having drained own, you've probably got an air lock. Do a search on here and there are several methods to pull the water through. On my Symphony the pump is under the false floor in the cupboard under the cooker. With the Duetto having similar layout I would look under there.

The pump is in the same place as the symphony. Yes you have an air lock,the carver holds about 7 litres,I'd put alot more water in and try again

Hi there,

Almost 100% (like 99%) sure that as previously explained it is air-locked so:

1. Fill the water tank.

2. Connect a bit of hose-pipe to the sink outlet pipe to give a fairly tight fit, open the cold tap, suck on the pipe and switch the pump on.

3. When you start to choke on the water coming through the pipe the air-lock will have cleared. (If this doesn't happen in 10 to 20 seconds then there is probably something else wrong so STOP THE PUMP!)

4. Close the cold tap and open the hot tap. After a minute or so (and maybe a lot of spluttering) you should get a steady flow. Close the hot tap and the pump should stop.

5. Go and open the cold and then the hot taps in the shower room. The water should run immediately (probably with a bit of spluttering) and the pump should start and stop accordingly (bearing in mind that there is an expansion chamber on the hot water system that causes a delay in starting and stopping the pump when using hot water).

Best regards,

Just a thought - did you refit the carver drain plug? If so did the 'O' ring drop off the drain plug when you drained the boiler?

Peter

Well, I finally got it sorted.
Not entirely sure what it was but I've a feeling it was probably ice in the system somewhere between the tank and the pump.
I couldn't suck the water up via the tap so I connected a pipe directly to the pump outlet and sucked it up that way.
However after leaving it for ten minutes, back to square one.
Long story short, I had to run 2 tanks of water through the pump before it would work properly.
only conclusion I could I could make is that I didn't drain it correctly, so this time I drained it, left all the taps open and blew it back so in theory there should be no water anywhere in the system.
Thanx to everyone for your advice.

Hi,

We've just been out for the first time this Summer and we're having waterworks trouble in our Harmony.

There's lots of air in the system (spluttering) and the pump runs continuously. I've drained and refilled a few times and it still does it. No obvious leaks.

I can only think it's the pumps or the carver leaking. The pump is not leaking itself and I haven't wrenched the carver out yet but there's nothing under the seat.

Any thoughts much appreciated.

Regards


Kevin

All the above is more or less moot.
I found out later that there was another problem causing this.
Have a read [You must be registered and logged in to see this link.]

What a voyage of discovery tonight has been.

1.
Remove Cascade water heat whilst doing an impression of a gynaecologist with tourettes.

2.
Join hot and cold pipes from the heater together to test the system pressure. Taps still splutter with air in the water. Bums.

3.
Stare menacingly at the water pump. Threaten it. Touch it and notice the clear dome filter thing is lose. Tighten by hand.

4.
Run taps again - perfect. Turn taps off, pump stops. Repeat several times using all taps. Perfect. Do a small dance.

5.
Replace heater. Recharge system. Watch water flood out of heater where it's attached to the burner once the pressure builds up to the point its never experienced before. Pooh!!!!

6.
Seek advice on direct replacement for original Carver that's easy to fit.

Cheers


Kevin

Kevin,

Don't despair!! It may be nothing more than a loose connection or a sticky pressure relief valve that hasn't re-seated properly.

I doubt very much that it has been over-pressured. Have a dram and then go and find what you forgot to do when you were reinstating the heater.

It will help you to track down the problem if you can find "The Grummit"!

A "Grummit" is anything that is left over after something has been put back together. I have an assortment of these things gathered over the years from bikes, cycles, boats, engines and cars. All of which have worked perfectly without the "grummit"!

However, I have had to put two or three back in when the article in question refused to work properly and this may be the case with your Carver.

Best regards,

Ian

1. Took it out again.

2. Stripped the whole thing down.

3. Cleaned out 14 years worth of yuck in the cylinder.

4. Reassembled leak free.

5. Reinstalled and listen to the sound of gas pouring out of the burner irrespective of whether or not the wall switch is on. FFS!.

6. Remover burner and electric and give them a stare. Reinstall.

7. Turn back on and no gas flow. Turn on at wall, perfect gas flow and ignition.

8. No leaks, pump only sounds when water running, all done.

Great sense of achievement but still in awe at how much longer these things take than you expect.

All done in time to take the cats out again for their second campy vacation on the weekend!

Kevin
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Knewt wrote:..............

Great sense of achievement but still in awe at how much longer these things take than you expect.

.................

Kevin,

You have just discovered the First Rule of working on boats and motorhomes; where every ten-minute job takes just over an hour!

Well done by the way!

Best regards,

Ian

duetto1462 wrote:The pump is in the same place as the symphony. Yes you have an air lock,the carver holds about 7 litres,I'd put alot more water in  and try again

HI  can you tell me where the water pump located in a ford duetto    ..thanks  

flyingdoc wrote:

duetto1462 wrote:The pump is in the same place as the symphony. Yes you have an air lock,the carver holds about 7 litres,I'd put alot more water in  and try again

HI  can you tell me where the water pump located in a ford duetto    ..thanks  

If the Duetto is on a MK4 or 5 Transit the water pump is located behind the panel inside the lowest cupboard under the sink (you will need to unscrew the panel at the back in order to access it).

If the Duetto is on a MK7 Transit, the water pump is accessed via the lower fridge vent from outside the van.