Valliant boiler in summer mode - no hot water

[skyhawker]

Hi, we have a Valliant ecotec II Plus 637.

Following service my boiler is showing Summer Mode symbol like an umbrella.

Issue is that the hot water seems also to not be working.

I found the instructions how to turn Summer Mode off.

1. Am I allowed to change this setting or does this need engineer?

2. In deactivating instructions it says to set 'required heating flow temperature'. What level should I set that at?

3. Should Summer Mode be effecting my hot water?

 

[Crofton Gas]

Summer mode won't affect hot water

Regards,

Mark

 

[picasso]

Which ecotec do you have? buttons or knobs on the front.

 

[skyhawker]

Sorry if this is laughable question. Is it in any way possible that installer connected hot water to CH outlet so hot water effected summer mode?

 

[skyhawker]

Which ecotec do you have? buttons or knobs on the front.

Buttons. Valliant ecotec II Plus 637

 

[skyhawker]

Also what is the function of Summer Mode if we have a thermostat?

 

[Crofton Gas]

Summer mode is to prevent heating coming on and allow just hot water, not all boilers have room stats. If you turn stat down you don't need summer mode.

 

[skyhawker]

Summer mode is to prevent heating coming on and allow just hot water, not all boilers have room stats. If you turn stat down you don't need summer mode.

Thanks.
I will deactivate it and see if it helps.
What should I set the heating flow temperature at?

 

[Crofton Gas]

Set temp to 70 - 75c, have you checked if theres pressure in the system?

 

[skyhawker]

Set temp to 70 - 75c, have you checked if theres pressure in the system?

Yes. Pressure is fine.

 

[Crofton Gas]

And the hot water temp setting is turned up? Have you got no hot water at all?

 

[picasso]

Is your hot water turned on on the programmer ?

 

[skyhawker]

Yes hot water on by programmer.

I have noticed that there is no hot water icon (tap icon) only the heating icon on right side.

Is this normal?

 

[skyhawker]

And the hot water temp setting is turned up? Have you got no hot water at all?

I can't get to the hot water setting. There is no hot water icon on the screen... I only got the heating icon on right hand side. The shows me pressure and allows me to change heat level.

I have taken off summer mode.

 

[Steelmasons]

The 637 is a system boiler and not a combi.