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Post by Alan Dowler on May 3, 2013 9:33:37 GMT -5
I have had boiler for 7 years and always serviced properly- last year changed 6 turbulators because they had melted. Now find that that even without heating on I cannot get more than 4 or 5" height of hot water in bath and have to repeat filling after 10/15 minutes tyo get enough water. Is their a fault I wonder.
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Post by Mike the Boilerman on May 6, 2013 7:02:53 GMT -5
Well yes, there IS a fault as you should be getting the same amount of hot water as you always used to!
Did it happen suddenly? If so I'd nominate the blender valve as the culprit. If this condition developed slowly over weeks or months, then it is almost certainly water scale contamination. A new heat exchanger or descaling is the fix.
With scale, the blender often fails too and needs to be replaced at the same time as descaling/new heat exchanger.
Mike
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Post by Clare on May 9, 2013 7:29:45 GMT -5
I have a Powermax 155x boiler. The heating is working ok however I hqave no hot water coming through at all, not even water that is cold - it is as if no water is getting through? can anyone help???
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Post by Mike the Boilerman on May 12, 2013 16:42:02 GMT -5
I have a Powermax 155x boiler. The heating is working ok however I hqave no hot water coming through at all, not even water that is cold - it is as if no water is getting through? can anyone help??? Clare, I imagine you have this sorted out by now but if not, it is a straightforward plumbing exercise to find the blockage. Any heating engineer should be able to do it for you! Chances are high it is a failed/blocked blender valve or an inlet filter. Hope that helps, Mike
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Post by Geoff on Mar 4, 2014 13:27:04 GMT -5
This is not a reply but a follow-up. I have the same hot water problem (hot water then cools to lukewarm). I have had the blender valve and the heat exchanger replaced but to no effect. Any suggestions?
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Post by Chris Grindle on Mar 17, 2014 5:27:04 GMT -5
Hi Geoff
I had the same issue after a couple of cowboys worked on my boiler, they replaced the flow switch and put it in upside down. this meant that the hot water was constantly being cooled by fresh cold water. I turned mine around so the spine is facing down and the problem was solved. It is the plastic unit that is attached to the copper pipes right in the middle of the unit. Hope this helps.
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max
New Member
Posts: 11
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Post by max on Dec 19, 2016 12:47:17 GMT -5
All,
Appreciate this is a number of years later, but was wondering if any of you ever got resolution with this issue? I have an issue where the hot water to the taps also slows to the point where it doesn't flow anymore, and am wondering if it is the blender valve causing the problem.
Many Thanks,
Max
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Post by LAK on Mar 23, 2017 14:00:29 GMT -5
I'd be interested in this too as had a very similar issue. Could begin to fill bath with hot water then it runs to lukewarm Bath still isn't full and no need to add any cold to get in it. Just had blender valve replaced and that hasn't solved the problem
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