Hi,
Been having a little trouble with my 10 year old Vokera Linea 24.
Problems started a week or 2 back, seemed to be after having a radiator moved.
Here's the manual - http://vokera.co.uk/wp-content/uplo...8_installation_and_servicing_instructions.pdf
All the parts mentioned are on page 52 of the pdf (manual page50)
Initial problem was no hot water coming from taps. It would start luke warm if the heating was already on, but then run cold. The boiler would fire up fine every time the tap was turned on. The heating has been, and still is, running fine all through these problems.
After reading on here I hoped it'd be the motorised valve for the diverter (part 2905). So I got a brand new one from ebay, and fitted it. No change. But now I could see the motor working when i switched between hot water and heating. I hadn't checked the other one properly.
Next I moved to the diverter (3 way?) valve.
In the shop I went to they suggested I change the diaphragm first, as it would be the more likely culprit. They said it was on the right hand side of the 3 way valve. Now in the manual it mentions nothing about a diaphragm. The item they were pointing at was described as a pressure switch (2044). So i thought, the diaphragm must be in there, it's about the right size. The manual was vague about removal, and there were 2 plastic screws facing out, so I removed one of them, it came out, along with a spring, and behind it I could see some copper for what I assumed was a switch. So I screwed the plastic screw and spring back in. Couldn't work out how to remove it, and wasn't convinced I'd find a diaphragm in there anyway. So I moved to the left side where the motor attaches.
I replaced the metal seating plate (7134), the needle and plastic bobin (part of kit 01005127), spring (6862) and all associated o rings and gaskets.
This seemed to go well, everthing i took out was very dirty, and I hoped the new stuff would be much more free to move.
But as soon as i repressurised and started it up I had a new problem. CH still fired up no problem, but now turning the tap would no longer fire up the flames. I can hear something in there, the fan maybe? but no flames, so no hot water. Then i had error 04 come up. At first when I just turned on the tap. But then after the heating had been on 5 mins the led would go red and error 04 would stop the system.
I had a fiddle with those odd plastic screws on the pressure switch. Couldn't find any reference to them in the manual, or on the internet. But it cleared the 04 fault so I had heating again.
So I thought, great, swap the pressure switch (2044). I found out it's been replaced by a much smaller part with no odd screws (10028141), so today I've fitted one of them. Now the old pressure switch had 2 white wires going to it, and I'd marked one so I knew which was which. But with the new switch I had no idea which wire was for which. But figured the wires were totally unmarked, both just plain white, so maybe it wouldn't matter. Anyway, i've tried them both ways round and still no difference.
So the problem still remains. Boiler works fine for heating, fires up every single time. Cuts out when water is hot, comes back on when it cools, no problem.
But for hot water it simply won't fire any more. No more error codes at all, pressure is fine, but no hot water, other than for 30 seconds luke warm if the heating has been on.
I'm not a plumber (clearly!) and hoped that I'd be able to fix this quite easily. (that was when i thought it was the motor). So obvioulsy I'm not going to be able to check anything on the gas side. But is there anything else I can do before having to shell out for a pro? Having been made redundant at christmas money is rather tight.
Thanks in advance
Bogg
Been having a little trouble with my 10 year old Vokera Linea 24.
Problems started a week or 2 back, seemed to be after having a radiator moved.
Here's the manual - http://vokera.co.uk/wp-content/uplo...8_installation_and_servicing_instructions.pdf
All the parts mentioned are on page 52 of the pdf (manual page50)
Initial problem was no hot water coming from taps. It would start luke warm if the heating was already on, but then run cold. The boiler would fire up fine every time the tap was turned on. The heating has been, and still is, running fine all through these problems.
After reading on here I hoped it'd be the motorised valve for the diverter (part 2905). So I got a brand new one from ebay, and fitted it. No change. But now I could see the motor working when i switched between hot water and heating. I hadn't checked the other one properly.
Next I moved to the diverter (3 way?) valve.
In the shop I went to they suggested I change the diaphragm first, as it would be the more likely culprit. They said it was on the right hand side of the 3 way valve. Now in the manual it mentions nothing about a diaphragm. The item they were pointing at was described as a pressure switch (2044). So i thought, the diaphragm must be in there, it's about the right size. The manual was vague about removal, and there were 2 plastic screws facing out, so I removed one of them, it came out, along with a spring, and behind it I could see some copper for what I assumed was a switch. So I screwed the plastic screw and spring back in. Couldn't work out how to remove it, and wasn't convinced I'd find a diaphragm in there anyway. So I moved to the left side where the motor attaches.
I replaced the metal seating plate (7134), the needle and plastic bobin (part of kit 01005127), spring (6862) and all associated o rings and gaskets.
This seemed to go well, everthing i took out was very dirty, and I hoped the new stuff would be much more free to move.
But as soon as i repressurised and started it up I had a new problem. CH still fired up no problem, but now turning the tap would no longer fire up the flames. I can hear something in there, the fan maybe? but no flames, so no hot water. Then i had error 04 come up. At first when I just turned on the tap. But then after the heating had been on 5 mins the led would go red and error 04 would stop the system.
I had a fiddle with those odd plastic screws on the pressure switch. Couldn't find any reference to them in the manual, or on the internet. But it cleared the 04 fault so I had heating again.
So I thought, great, swap the pressure switch (2044). I found out it's been replaced by a much smaller part with no odd screws (10028141), so today I've fitted one of them. Now the old pressure switch had 2 white wires going to it, and I'd marked one so I knew which was which. But with the new switch I had no idea which wire was for which. But figured the wires were totally unmarked, both just plain white, so maybe it wouldn't matter. Anyway, i've tried them both ways round and still no difference.
So the problem still remains. Boiler works fine for heating, fires up every single time. Cuts out when water is hot, comes back on when it cools, no problem.
But for hot water it simply won't fire any more. No more error codes at all, pressure is fine, but no hot water, other than for 30 seconds luke warm if the heating has been on.
I'm not a plumber (clearly!) and hoped that I'd be able to fix this quite easily. (that was when i thought it was the motor). So obvioulsy I'm not going to be able to check anything on the gas side. But is there anything else I can do before having to shell out for a pro? Having been made redundant at christmas money is rather tight.
Thanks in advance
Bogg
