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by dbwoody
Mon Mar 12, 2012 4:40 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Can someone help me solve a problem
Replies: 11
Views: 3730

Re: Can someone help me solve a problem

Thanks "power flush man" you are absolutely right, I have cut out the area in question and it sure was blocked, it had been totally blocked but I managed to cut a 5mm hole through yesterday so I cut get top-up water in the system. When I cut out the TOWER air separator and all the pipe aro...
by dbwoody
Sat Mar 10, 2012 1:01 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Can someone help me solve a problem
Replies: 11
Views: 3730

Re: Can someone help me solve a problem

Thank you for your comments, I will certainly investigate, I have no problem with this area when I refilled the system after flushing though, but as I say I will cut out the pipe and have a look.
by dbwoody
Fri Mar 09, 2012 11:41 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Can someone help me solve a problem
Replies: 11
Views: 3730

Re: Can someone help me solve a problem

I used a strainer last week when I flushed the system and found some small debris but nothing significant but I have now installed a SPIROTRAP filter.
by dbwoody
Thu Mar 08, 2012 3:57 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Can someone help me solve a problem
Replies: 11
Views: 3730

Re: Can someone help me solve a problem

ok "plumbbob" I understand but I really suspect the Grundfos Pump, I have talked to Grundfos tech guys and they tell me that a pump performance can deteriorate over time, this pump is 11 years old and always been on speed 11 until now and was in need of a boost but speed 111 is too high so...
by dbwoody
Thu Mar 08, 2012 9:05 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Can someone help me solve a problem
Replies: 11
Views: 3730

Re: Can someone help me solve a problem

Thanks "plumbbob" for your replies, as an engineer myself I find them a bit academic, my hope was that an heating engineer who had experienced a simular problem and could offer advise.

Thanks for tying to help.
by dbwoody
Wed Mar 07, 2012 9:28 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Cold Radiator with hot output pipe.
Replies: 2
Views: 4751

Re: Cold Radiator with hot output pipe.

I would have thought the first thing you should do is try bleeding air out of radiator, air tends to migrate to the easiest spot.
by dbwoody
Wed Mar 07, 2012 9:20 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Can someone help me solve a problem
Replies: 11
Views: 3730

Re: Can someone help me solve a problem

No I don't believe water was boiling it was too hot to touch the vent pipe though, it was as if the pump had stopped for some reason, it was set on speed 11 where it has been for long time, so I moved it to speed 111 and although it is a bit more noisy, especially when heating is off and only hot wa...
by dbwoody
Tue Mar 06, 2012 1:24 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Can someone help me solve a problem
Replies: 11
Views: 3730

Can someone help me solve a problem

My central heating system is Pumped Open Vented with 3 way diverter valve for heating water tank. I was working in the boiler area and could hear what sounded like boiling water coming from the boiler, wooshing and gushing, when I checked I found that hot water was being pushed up the vent to the he...
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