Hot water problem | Bathroom Advice | Plumbers Forums

Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Discuss Hot water problem in the Bathroom Advice area at Plumbers Forums

M

Martin2

I’m looking for some advice on a problem I have with the hot water system. I’m not too au fait with boilers etc, so as simple as possible please ;-)

Boiler is an Ideal Classic FF260
Open vent system (Storage tank in airing cupboard, 2 open tanks in loft space)

For the last year after the hot water alone has been on for 10 minutes or longer, the pipes above the boiler begin to clunk, eventually this causes all pipework in the loft space to clunk resulting in warm/hot water being vented from the overflow. If the heating is on at the same time, this happens much less often (as it has been winter the heating has been on regularly, but as summer approaches I will want to turn off the heating). If the heating is on alone (no hot water) then there is no problem whatsoever, it has been on 24 hours at times. An engineer visited last year, didn’t seem to know what the problem was and said the following
1) Run the boiler at setting 4 ( of 6)
2) Run the Pump at highest setting (of 3)
3) Run Central Heating for 10 minutes before hot water (minimal success with this as water still eventually vents)
4) Power Flush the system
From what I have read about Power Flushes this seems to be primarily cleaning radiators and improving heating. As the central heating seems fine, radiators warm evenly, I’m uncertain what benefit this will give and don’t want to spend money and be no nearer fixing the real issue.

Any advice on what maybe causing the problem would be much appreciated, and also advise on whether a power flush would resolve the problem.

Thank You
 
It sounds like your boiler is overheating, also sounds like your heating engineer wasn't very helpful.

As the most likely cause of your problems involve removing the boiler case you'd need a Gas Safe engineer to investigate.

Perhaps put an ad on this forum for an engineer in your area.
 
My FF260 doing the same thing, there seems to be some inital noise like air rushing through the Rads, followed by the entire pipework having fir and then the overflow in the loft blasting hot water out into the garden.
It seems to happen at random and can't see any pattern to it.

Did you resolve or identify the issue?
 
Pumping over can be caused by many factors and can also be very dangerous, you should get a gas safe engineer in ASAP.
 

Similar plumbing topics

  • Question
Not to my knowledge but they're not things I...
Replies
4
Views
1K
  • Question
You need to narrow down your search area...
Replies
1
Views
806
  • Question
Yeah will deffo try I’ve got a strong magnet...
Replies
6
Views
635
  • Question
You've fecked up, it's not the way to do it...
Replies
18
Views
2K
  • Question
Yours is an old fotic cylinder, Thermal store...
Replies
1
Views
1K
Back
Top