My combi gas boiler is playing up, when I run the hot water it runs hot for a bit then goes cold then hot?? I called someone in to look at just before Xmas and he charged the fookin earth and replaced two rubber diaphrams, but it still did'nt solve it so he said it was the thermostat which he said he would replace in the new year. I am no gas engineer or nothing but I do'nt think its that as the temperature dial shows when its hot on about 80 deg then shows it drops to about 20 deg when it's cold. I think its something to do with the thing actually firing up, because when I run the hot tap and it turns cold the boiler does'nt fire up straight away, then when its firing the temprature goes up and the hot water runs out constant, not with the tap turned on full but with it only on a bit. Its a vey hard thing to put into words but this is as good as I can explain it. Cheers in advance.

what make and model is it?

Vokera excell 80 sp

We got a EuroCombi Ariston and we had that problem some time ago. called in the guy that installed it and he said it needed to be serviced. theres a sticker on it sayin that it has been treated with fernox protector. since then it been workin great.

We got a EuroCombi Ariston and we had that problem some time ago. called in the guy that installed it and he said it needed to be serviced. theres a sticker on it sayin that it has been treated with fernox protector. since then it been workin great.

Where do I get one of these stickers then?? LOL ;)

A combi boiler should have a guage showing the water pressure in the system.

If the sytem water level/pressure is too low the boiler is prevented from firing up.

The water needs topping up.

Usually there is a tap/valve with a loop of pipe that lets mains water in to the heating system.

 

Might be your problem.

Phone the Vokera help line,,, they are very good,, their number should be on the boiler instruction book.

A combi boiler should have a guage showing the water pressure in the system.

If the sytem water level/pressure is too low the boiler is prevented from firing up.

The water needs topping up.

Usually there is a tap/valve with a loop of pipe that lets mains water in to the heating system.

 

Might be your problem.

Its on 1.5 wich is supposed to be right. But it does fall sometimes for no apparent reason. Also I have just noticed that some water is dripping out from underneath the boiler, not a lot but a bit. :confused:

You should talk to Neil Morris preferably before hes hit the bottle, I am sure he could give some advice on this.

Phone the Vokera help line,,, they are very good,, their number should be on the boiler instruction book.

Will do monday, cheers mate.

Speed, if the heating stays hot but the water goes cold n flame goes out it could be the heat exchange on the water side clogged, if it is the above then id say deffo the heat exchange

 

John

Speed, if the heating stays hot but the water goes cold n flame goes out it could be the heat exchange on the water side clogged, if it is the above then id say deffo the heat exchange

 

John

Thats it bud you have hit the snail on the head :bow: the heating stays hot but the water goes cold and the flame goes out. Your a genius :bow: :bow: Now I can tell somebody whats fooked up on it hopefull. Cheers bud.

Can I fix this problem or is it one for a Corgi registered expert??

Can I fix this problem or is it one for a Corgi registered expert??

 

corgi reg only bud, isnt an easy job to do .. best to be on the safe side where gas is concerned :D glad to be of service :D

 

John