VALIANT ECO TEC

[TANNERS]

hi got a valiant eco 10 months old on brand new circuit
losing 3 bar a day yes a day traced whole circuit no leak drip drop or weap
baged the blow off, not a ml

where the is it going ???????????

bicycle pump pump up cylinder or sommink anyone????????????????

 

[Agile]

You could isolate the boiler underneath and see if its from the boiler or the circuit.

If circuit then there is something you have not noticed!

If boiler then its either being vapourised in the combustion chamber or its leaking and going down the condensate drain!!!

Tony Glazier

 

[TANNERS]

condansate drain was an idea but that would be a lot of water wouldnt it
pressure vessel seems a good bet never done it thought any thoughts

 

[croydoncorgi]

Does pressure drop to zero? or from (say) 1.5 to 0.5 and stops there?

 

[StevenageG]

Does pressure drop to zero? or from (say) 1.5 to 0.5 and stops there?

Have exactly the same problem with my daughters vailliant ecotec831 boiler, jjust over 2 years old. It has been losing water (no idea where it goes though - no leaks to be found anywhere. She's got a top floor flat and has had complaints from the people below ) for months, strapped for cash so have been topping up system and HW and CH kick in as soon as pressure is reached. The water pressure drops to zero over a few days. Not sure if it helps diagnostics but water loss is greater/quicker when heating has been on. Any help appreciated - Happy New year to all.

 

[Agile]

What are the people in the flat below complaining about?

Tony

 

[StevenageG]

What are the people in the flat below complaining about?

Tony

Sorry should have said - She's got a top floor flat and has had 'NO' complaints from the people below about water leaks etc ) - ooops

 

[rickiedinsdale]

Hi need some help

 

[Stuckinarut]

Hi need some help

Ok. What with? Best to start a new thread rather than hijack a 17 year old thread.

 

[rickiedinsdale]

Hi I'm need some help

 

[rickiedinsdale]

Oh sorry,my valiant eco Tek 825 is over pressuing on its own it does it when it is not running but quicker when heating is on I'm having to drain from it from the drain point at the radiator I was wondering if the expansion tank needs repressuring as the system got drained as one of my radiators fell of the wall ,I've read that normally if expansion tank is not pressured you get a drop in pressure,I had high water pressure coming in from the mains so i turned the pressure down but has no effect

 

[kidgreen61]

The mains water pressure has nothing to do with the system pressure displayed on the gauge, they are connected by a filling loop which sounds as though it may be passing, ie, allowing mains water into the heating circuit.

 

[Stuckinarut]

Oh sorry,my valiant eco Tek 825 is over pressuing on its own it does it when it is not running but quicker when heating is on I'm having to drain from it from the drain point at the radiator I was wondering if the expansion tank needs repressuring as the system got drained as one of my radiators fell of the wall ,I've read that normally if expansion tank is not pressured you get a drop in pressure,I had high water pressure coming in from the mains so i turned the pressure down but has no effect

As above, check your filling loop. You could also have an expansion issue too, but check the loop 1st.

 

[rickiedinsdale]

Could it want repressuring the boiler got drained completely

 

[Stuckinarut]

Could it want repressuring the boiler got drained completely

This doesn’t make sense, as you say

Oh sorry,my valiant eco Tek 825 is over pressuing on its own it