My Valliant boiler (ecoTEC plus 831) isn't producing hot water today so I checked the instruction to see whats wrong and I've noticed that the water pressure gauge is right at the bottom and I'm getting an F.22 error.

The instructions say I need to fill the system up with water before using the boiler but it doesn't say how I can do this or whether or not that's a job for the bloke who fitted it.

Any ideas

You should have a little filler loop with a braided hose and a little on/off tap.


lee

nope nothing like that near the boiler

The filling loop should accessible behind the bottom cover ... and you're right, the user manual gives the fault diagnosis but doesn't actually tell you how to do it! Have a look at the Installation Manual link here, section 5.4.2, figure 5.2, page 29.

Thanks for the link but clearly this is not a job for me, I guess I'll have to call a plumber out tommorow and hope that this doesn't happen again, we've only had the bloody thing for 2 months.

Monday morning will be fun without any hot water.

It does look a bit daunting, but it *is* the sort of thing you can do yourself – and *much* cheaper than calling a plumber, well worth taking the time to figure it out. The free end of the loop needs to be pushed into the socket on the cold-water stop valve and fixed with the spring clip thingy; then you open the stop valves at each end of the loop to fill/pressurise the system. Close both valves and unplug the loop when done.

Yay!
OK I read the instructions and thought that it looks too complicated, I don't even have a spring clip and there's no way in hell I'm pulling any thing out of anywhere on a boiler so I thought I'll just skip that bit and open the stop valves and hope it works and surprisingly it has.

Which makes me wonder if I've either done something wrong and will pay for it later or if those instructions are for the first time installation.

Ah right now I see how what happened , just got out a torch and had a really good look.

It seems that after the boiler man filled the system he didn't detach the filling device by pulling the double check valve from the cold water stop valve, so when I opened both stop valves it just filled the system.

Not sure if I should go ahead and detach the filling device, is there a good reason to do so and to be honest the thought of pulling anything out of the boiler terrifies me. I take it that you pull out one end and leave it there sorta hanging?

Excellent! – Disconnecting the loop (at the double check value, and with both valves closed!) actually has no effect on the boiler, it’s just to comply with the water regulations – doing this eliminates any chance of the ‘boiler’ water finding its way back into the mains supply.

ok as a female all this seems pretty daunting .. any one explain what happens when the digital screen shows the fault F.28?

Thanks

Google is your friend...

quote:

Straight from the vaillant manual >F.28 means No gas;Insufficent gas ;incorect gas valve adjustment ; electrode defective ;ignition lead defect; Electronic ignitor defective,

There are plenty of links if you search google for "Vaillant f28"

Sounds like you might need a Corgi for this one. British Gas do a call out now where you pay a fixed price. This can be good if you live in an area where reasonably priced plumbers are like hens teeth (like I do)...

quote:

f28 is a gas valve problem,just press the reset(top left button under the display and it should refire)if it keeps going to f28 call Vaillant
08706060777 for a warranty call.