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Update and solution. It turned out the pump was not working intermittently. Almost always when hot water is used, and 50% of the time when heating is wanted. Pump was not working because the PCB was faulty. No power to pump (interm.) Also strangelly the boiler will lock out with error 04 from...

How did you resolve it? Was it stricly happening for DHW, but never for heating?

Thanks a lot. My observation is that during the hot water demand the error 04 appears quite often, but not always. Also it sometimes would get the error during taking a shower rather than from the start of DHW demand. During heating demand not so often. I don't live where the boiler is so...

For the pump, it is running heating works, when not in error 04. I don't know if there is air in the boiler. Yes, happens for both heating and hot water.

Only one small pipe. Going out behind the white pipe/socket where the actuator motor pushes a pin. There are small pipes within the manifold, but they are part of the metal casing/cast.

Membrane under the plunger/pin is brand new. This did not fix it.

Hi all, I am in search for a replacement boiler. I need something of 28 kW. What I am looking for is: Reliable Longest warranty Low to mid range price Good out of warranty service (fixed price repair or care plan). For instance vokera have fixed price repair but they don't have the people to...

Hi I got a problem with my vokera linea 28. It locks with error 04. Howver the water pressure is 1.4bar. There is a problem with the pin below. It sometimes dont protrudes out to press the micro switch in front of it. This causes error 04 and if microswith is pressed by hand errror is cleared...

So you think it should be possible to unscrew the part from the main body?

Thanks. However I can not unscrew the part which holds the 2 grub screws. It seems it is just part of the cast. Left hand part here with the white pin: I can not see any gap between this and the main body of the manifold. Is it really part of the cast?

Can anyone suggest what to use to clean the inside of the pipework from the hard black stuff?

Thanks for the clarification. Indeed regular service is probably the best practice. Anyway, I still need some advice on what to change, so anyone else's input is welcome.

What do you mean by that. That you do reguar servicing of your boiler so it doesnt come to problems or what? Please emaborate.

Yes, agreed. Bad idea. Need to fix it properly.

Hi, Agreed the circle item is the flow manifold, but the whole item in the picture is sold as "COMPLETE DIVERTER VALVE". Isnt that correct naming? I noticed that the spindel is pushing out when hot water tap is on (well, sometimes it is NOT pushing out and the error 04 occurs). However I...

Some corrections. It seems my vokera linea 28 is GC Number 47 094 28. As such there is no pressure switch as in the above schematic. There is a micro switch which is pressed by a pin which sticks out from the diverter valve. This is what it looks like. The pin pushes the metal plank...

See below post

Hi all, I have similar problem. There is a water dripping from where the Diverter Valve joins Domestic Distribution Manifold. It drips from one of the grub screw holes (bottom one). I was wondering do I need to buy new doverter valve or just replace the o-ring as in the above picture. Is the...

Hi all, My Ideal logic loses heating water pressure. It started with needing 7 day between toping up pressure. Then it went to 3 days, now it is 32 hours. What I've checked: All radiators and piping above the floor - no leaks. PRV pipe outwide with a plastic bag tied to it for a week - no...