Water runs hot then cold- plumber or boilerman needed?

[citylover]

Hi, has anyone had this problem that when you run the hot tap it runs hot for a while, then goes cold for a couople of minutes, then hot for a couple of minutes, then cold again and so on and on. It's murder in the shower. I don't know if this is something to call a boiler person in for or a plumber- did anyone have the same problem fixed and can advise? (& a rec. for the person who fixed it is most welcome!)

[Calsug]

Suggest you get a pro round, could be something very simple or something a bit more serious that shouldn't be ignored. Give John Powers a call he is a very good plumber and will give you a fair assessment of what is wrong

[citylover]

I know I need to get a professional round I'm just not sure which kind to get! I don't want to get a plumber round and have him tell me it's a boiler problem or vice versa because I will end up paying twice, that is my dilemma, hence hoping someone who's had the same problem will know...

[Calsug]

Well if its your water running hot then cold its a boiler issue - But to answer your question John Powers does both plumbing and boiler repair

[citylover]

Okay, thank you for that. And huge thanks to those who have pm'd me with what it turned out it was due to when it happened to them. Much appreciated.

[KidKruger]

What was it ?

[citylover]

I have not had time to get the person round yet, but I will post as soon as I have and have a definitive answer, but so far the general consensus (including pm's) seems to be that this is a boiler problem rather than plumbing. Hope that helps!

[Lordlordship]

I have recently had this problem. The heat exchanger (the main part) of my combi boiler has gone, so that needs replacing, which is fairly expensive, or replacing the whole boiler seems the more cost effective option for the long run. Hopefully you are a bit luckier than me and may just need something a bit simpler replaced. Happy Saturday