pump does not seem to be working

[tj49]

hi all, i just want a bit of advice, i have a icos he15 boiler that has started to make banging noised when started, the panel all lights up as it should be after a few minutes it starts to bang and the burner light starts to flash this will countiue to cycle like this if allowed, i have noitced the pump in airing cupboard is lighting up power but nothing else where before i know this whould light up three bars, so i was just wondering if anyone could tell me if this sounds like a failed pump thanks

 

[ShaunCorbs]

Can you feel the pump working as I think it's in auto mode

 

[tj49]

hi thanks for the reply, i cant hear or feel anything from it, when you say its in auto mode is this something i can change as pressing the button on it does nothing, thanks

 

[ShaunCorbs]

hi thanks for the reply, i cant hear or feel anything from it, when you say its in auto mode is this something i can change as pressing the button on it does nothing, thanks

Yes press the button and that turns it into manual and the bars should light up one for each press

 

[tj49]

hi pressing the buttom does nothing, it just stays as shown in the picture

 

[Best]

Maybe new pump needed. I have come across same thing happening with other brands of A rated pumps. Fancy, more complex full of electronics energy saving pumps seem to not last sadly

 

[Gasmk1]

beuty of new enegy saving pumps cant undo the centre screw to see if it is spinng or not

 

[Howsie]

It's relatively easy to test if it's working with a multimeter if you own one.

 

[ShaunCorbs]

But if you can't feel a buzz / spinning vibration new pump needed

 

[tj49]

dont have a meter so cant test sorry, cant feel or hear anything from the pump just the banging noise from the boiler when it starts up, ok if im looking a new pump what would you guys recommend as a straight replacement for mine

 

[ShaunCorbs]

grundfos ups2 15-50/60
Dab evosta

 

[SimonG]

Dab for me. Sick of grundfoss.

 

[gassafe]

Sounds like the pump has failed, if it's silent with no vibrations & the boiler is now overheating / banging then it all concurs...

Nice easy DIY bank holiday project for you... I would recommend the grundfos 15/60... Not the alpha 2 again..

 

[tj49]

hi thanks for your suggestions but i now staring to be a bit worried as i recieved a message this morning suggesting my pump may be fitted wrong ? ok the pump in picture is mine, the bottom pipe is to boiler the top pipe is to small tank in attic and you can just see in the picture the arrow on the pump is pointing down to boiler which is below is this correct? as we have only been here for around four mths could it have been fitted wrong and is now just staring to go wrong, thanks

 

[jtsplumbing]

Need more information on your system, pump can go on flow or return,

 

[tj49]

no problem, what info do you need, thanks

 

[jtsplumbing]

Can you put more photos of airing cupboard , where does pipe go on left of photo ?

 

[tj49]

a few more pictures

 

[tj49]

 

[jtsplumbing]

In reply to your question pump IS facing in the correct direction, pumping towards the 3 port diverter valve

 

[tj49]

well thats a bit of good news, hopefully i can get a pump then over the weekend and get some heat back on, thanks again guys for all your advice, will post a update once ive changed pumps

 

[tj49]

ok update on my problem, finally got round to changing the pump for a DAB Evosta 40/70-130 and great news it has cured the problem all heating and water back up and running, just want to say thank you to all who posted a reply to me it was a great help will be back if i have any more plumbing problems thanks again tom

 

[jtsplumbing]

Well you will be back Not the best of pump makes, should have gone for a Grundfoss or Wilo

 

[ShaunCorbs]

Well you will be back Not the best of pump makes, should have gone for a Grundfoss or Wilo

Is this a joke ? Most people are moving from grundfoss to dab and tbh there better

 

[jtsplumbing]

Is this a joke ? Most people are moving from grundfoss to dab and tbh there better

Well that's your opinion! you go of your experiences & I'll go of mine, Same as what boiler or fittings, or controls we use. we all have our likes & dis-likes