Found 8th Jun 2009
my heater is fine, but no hot water. there is some for about 5 min, then it's gone. if wait a few hours, there it is again, then it's gone again. any idea what the problem might be. don't want to spend a fortune and find out in the end it is only something stuck . thanks

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Editor

Hi Elves Do you have enough water in your tank?

Sometimes, through bleeding your radiators etc, you can lose water, which means you have less water in your tank, so less is heated if you know what I mean.

Original Poster

how do you check, sorry, know nothing about plumbing

Sounds like you have air in your system. My father always combats by bleeding the radiators. The boiler should replace the lost water.

Original Poster

Adam2050;5433798

Sounds like you have air in your system. My father always combats by … Sounds like you have air in your system. My father always combats by bleeding the radiators. The boiler should replace the lost water.



how to do bleeding? sorry, a bit dumb

This happens to me every couple of months with my combi boiler.

Usually my pressure sits at about 2, but sometimes it drops below 1, which means that when I run my tap, the pilot light goes but theres not enough pressure to keep it going and it goes cold and stops, if I put my radiators on its like theres a huge pressure build so its enough to keep the pressure above 1, but it takes a couple of hours before you could run your hot water without the use of the radiator being on, but then every morning you get up or if its not ran for an hour or so it goes again.

My neighbour fixes mine, I can get the Housing Association to come do it but hes faster at it, he has the pipe to bleed the boiler so to speak.

I have no idea if you have a combi boiler or not, but I can tell you mine is a pain in the **** for this, especially in warmer weather.

Housing said that I must have a leak in one of my radiators somewhere and thats why it keeps dropping pressure, even tho they cant find one, but I'm not the only person who has an issue with this, my neighbours do and the OHs Auntie does too.

Elves;5433850

how to do bleeding? sorry, a bit dumb



Worth a try theres a key lock on usually either side of the radiators.

May not fix your problem.

Banned

have you got a tank which holds/stores your hot water?

Original Poster

sassie;5433905

have you got a tank which holds/stores your hot water?



I have a tank in boiler cupboard and a white box in garage that has pilot light. so , i suppose i have water tank? not sure, just move in, plus i'm not british, not familiar with this kind of thing. thanks for all your help though :thumbsup:

Banned

if it is only a small tank then their wont be much hot water, do you mean it runs cold after 5 mins? or water stops?

Original Poster

sassie;5434235

if it is only a small tank then their wont be much hot water, do you mean … if it is only a small tank then their wont be much hot water, do you mean it runs cold after 5 mins? or water stops?



runs cold. it's started since 3 weeks ago

Banned

Elves;5434357

runs cold. it's started since 3 weeks ago



sounds weird, is it very hot to begin with then runs cold? it does sound like your water tank isnt full, but if it turns to cold water then it must have water in it, unless its refillling as the little bit of hot water is run

Original Poster

sassie;5434393

sounds weird, is it very hot to begin with then runs cold? it does sound … sounds weird, is it very hot to begin with then runs cold? it does sound like your water tank isnt full, but if it turns to cold water then it must have water in it, unless its refillling as the little bit of hot water is run



is it very hot to begin with then runs cold? --- yep.

I'll try bleed the radiator later when hubby is home. thanks anyway.
any input is welcome, so i can try all of them before i call a plumber :thumbsup:

Banned

Elves;5434446

is it very hot to begin with then runs cold? --- yep.I'll try bleed the … is it very hot to begin with then runs cold? --- yep.I'll try bleed the radiator later when hubby is home. thanks anyway. any input is welcome, so i can try all of them before i call a plumber :thumbsup:



I think rads are fed via cold tank in attic so doubt thats the problem

Original Poster

sassie;5434469

I think rads are fed via cold tank in attic so doubt thats the problem



hmm...:roll: wonder what's the problem

Banned

im assuming you dont have to have hot water on to have heating on, when i had a hot water tank my rads where fed via cold water tank in attic

Original Poster

sassie;5434527

im assuming you dont have to have hot water on to have heating on, when i … im assuming you dont have to have hot water on to have heating on, when i had a hot water tank my rads where fed via cold water tank in attic



not sure :?
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