Vaillant Ecotec S.07 code

[Dan Robinson]

You've already answered the by-pass question, although I would undo the brass cap until you can see the number 5, or maybe 4.

Does the boiler make a hissing noise before it shuts down?

 

[Bl888]

I took off the red lid and it is a brass cap tigtened to its full. Should this be fully tightened?

Its got no numbers on it from what i can see

That's not good either.

Are we sure the hot water isn't coming from the immersion heater?

A 15-50 on a 418 should be OK (sorry only just had a chance to check the boiler destructions this evening).

a 15-60 would be better, but i think you have more fundamental problems.

The last plumber that came to clean the system said hes never seen one of these red cap things before and was messing about with it. Now its fully tightened. Should it be opened?

The immersion definitely is not on as there is a plug left on the floor (on the left_) with label immersion socket. It is also NOT plugged in at all. So deffo think hot water coming from boiler. Although there is not a lot of it. Note that we still not moved into property yet, just doing it up a the mo so not using much hot water at all

 

[Bl888]

You've already answered the by-pass question, although I would undo the brass cap until you can see the number 5, or maybe 4.

Does the boiler make a hissing noise before it shuts down?

Ok let me pop over there again to try. its just round the corner.

Is there a number i can call you on when im over there?

 

[Dan Robinson]

Read the FAQ about balancing the heating system.

Then monitor D.40 when you turn the heating on (hot water off).


Post back what happens.

 

[Dan Robinson]

The last plumber that came to clean the system said hes never seen one of these red cap things before and was messing about with it

Oh sweet Jesus! :Lol:

It should be open enough to work on the system. The fact the other guy didn't know what it was is worrying; but unlikely to be the cause of the problems. But he obviously didn't clean the system if the magnaclean was dirty.

D.40 is the flow temperature and D41 is the return temperature.

They should rise slowly (40 faster than 41 initially) when the boiler comes on.

 

[Bl888]

Read the FAQ about balancing the heating system.

Then monitor D.40 when you turn the heating on (hot water off).


Post back what happens.

the 2 valves on either side of the pump, should i turn them back to where they were ie midway rather than fully open?
This is where it changed from error S7 to S58

 

[Dan Robinson]

S codes are not errors.

They are status codes telling you what the boiler is doing.


Don't you mean S.28?

The valves either side of the pump should be turned fully anti-clockwise, then back a quarter of a turn.

The valves on the Magnaclean should have the words ON visible on the chrome cut outs.

 

[Bl888]

S codes are not errors.

They are status codes telling you what the boiler is doing.


Don't you mean S.28?

The valves either side of the pump should be turned fully anti-clockwise, then back a quarter of a turn.

The valves on the Magnaclean should have the words ON visible on the chrome cut outs.

Ok done that and also moved brass cap under red cap to what looks like 0.5

D40 is 43 and static
D41 is 28 and static

 

[Bl888]

S codes are not errors.

They are status codes telling you what the boiler is doing.


Don't you mean S.28?

The valves either side of the pump should be turned fully anti-clockwise, then back a quarter of a turn.

The valves on the Magnaclean should have the words ON visible on the chrome cut outs.

Magnaclean says on for both valves.

Boiler constant on s53

Pipes either side of pump is warm.

Pump sounds like making funny water spluttering sound

 

[bellairaphon]

Looking at the manual, and aslong as the pipes aren't crossing over out of sight then I'd say the flow and return are wrong way round.

 

[Dan Robinson]

0.5 is too low. The water will never go round the rads.

Put it to 3.5 or 4 and follow the FAQ on balancing.

D.40 should gradually start to rise with the burner symbol displayed as the heating warms up.

D41 will start to rise later.

 

[Bl888]

0.5 is too low. The water will never go round the rads.

Put it to 3.5 or 4 and follow the FAQ on balancing.

D.40 should gradually start to rise with the burner symbol displayed as the heating warms up.

D41 will start to rise later.

The brass cap under the red cap only goes in the following:

0.2 furthest out
0.3
0.4
0.5
0.6 fuly screwed in

What should I set to?

 

[Bl888]

D40 is now 51
D41 is now 36

Normal info is still on s53

Any concerns?

 

[Dan Robinson]

0.5 is too low. The water will never go round the rads.

Put it to 3.5 or 4 and follow the FAQ on balancing.

D.40 should gradually start to rise with the burner symbol displayed as the heating warms up.

D41 will start to rise later.

The brass cap under the red cap only goes in the following:

0.2 furthest out
0.3
0.4
0.5
0.6 fuly screwed in

What should I set to?

Apologies - I was thinking of that valves brother which is numbered 1 - 6.

Leave it on 0.4 for now.

S53 shows the boiler is not happy with the flow through the heat exchanger.

If you open the bypass too much the heating will never work. Open it too little and the boiler will drop out to an error.

Sounds like your system is a mess and needs a clean out.

THe only other thing I can think of right now is to drop D.0 to say 6 and see how it behaves then.

 

[picasso]

If you look at the body of the pump there is an arrow showing direction of flow, is it pointing up or down ?