RAVENHEAT COMBI BOILER . HOT WATER PROBLEM

[stebell]

HI

I HAVE A RAVENHEAT COMBI BOILER CSI85 , I AM HAVING PROBLEMS WITH MY HOT WATER . I CAN ONLY GET HOT WATER IF MY CENTRAL HEATING IS SWITCHED ON . WHEN MY CENTRAL HEATING IS SWITCHED OFF MY HOT WATER IS COLD.MY HEATING IS CONTROLLED BY MY THERMOSTATE SWITCH . THE BOILER IS 3YEARS OLD . I HAVE THE BOILER SET TO RADS AND WATER ( THE RADIATER AND TAP SIGN ON BOILER ) AND THEY ARE BOTH SET TO MAX . THIS HAS ONLY JUST STARTED HAPPENING . CAN ANYONE POINT ME IN THE RIGHT DIRECTION . THANKS
STEVE

 

[adlplumbing]

possibly micro switch on diaverta not working

 

[gasbanni]

Probably diagphragm raven heat will tell you you need a whole new diverter valve, but you can get just the diaphragm !

 

[stebell]

possibly micro switch on diaverta not working

Thanks for info , i have took the cover off the boiler today . When i turn the hot water taps on the gas ignites in the boiler as i can see the gas flames through the window and can hear it kick in . The water gets warm but not red hot . The boiler only comes on if i have the tap running at a high speed if i turn the taps to running slower then the gas doesnt ignite in the boiler and the water is stone cold .

 

[stebell]

Probably diagphragm raven heat will tell you you need a whole new diverter valve, but you can get just the diaphragm !

Thanks for info , i have took the cover off the boiler today . When i turn the hot water taps on the gas ignites in the boiler as i can see the gas flames through the window and can hear it kick in . The water gets warm but not red hot . The boiler only comes on if i have the tap running at a high speed if i turn the taps to running slower then the gas doesnt ignite in the boiler and the water is stone cold .

 

[adlplumbing]

quick question for you i know parts manchester have lime scale problems are u in this type area if so as previous guy mention the diaverta valve is proably the problem but i would also install lime scale inhibtor

 

[gasbanni]

Probably diagphragm raven heat will tell you you need a whole new diverter valve, but you can get just the diaphragm !

YES IT DOES !!!!!

 

[stebell]

quick question for you i know parts manchester have lime scale problems are u in this type area if so as previous guy mention the diaverta valve is proably the problem but i would also install lime scale inhibtor

Hi
Iv'e been told that the area were i live (whitefield) doesnt have limescale problems . How much rougthly does the diaverta valve cost and is it a big job .

 

[adlplumbing]

do not know on your particalier boiler sorry just look it online and get your mi to see how to do it

 

[gasbanni]

quick question for you i know parts manchester have lime scale problems are u in this type area if so as previous guy mention the diaverta valve is proably the problem but i would also install lime scale inhibtor

Hi
Iv'e been told that the area were i live (whitefield) doesnt have limescale problems . How much rougthly does the diaverta valve cost and is it a big job .

The diaphgram is in the diverter valve ! you dont need to have a diverter valve fitted have a new diaphgram fitted ! you'll save money and it will work ! diverter valve can be sericed at the same time.

 

[stebell]

quick question for you i know parts manchester have lime scale problems are u in this type area if so as previous guy mention the diaverta valve is proably the problem but i would also install lime scale inhibtor

Hi
Iv'e been told that the area were i live (whitefield) doesnt have limescale problems . How much rougthly does the diaverta valve cost and is it a big job .

The diaphgram is in the diverter valve ! you dont need to have a diverter valve fitted have a new diaphgram fitted ! you'll save money and it will work ! diverter valve can be sericed at the same time.

Hi
Im looking in the sparts lists sheet that came with my boiler , i can only see the following for Diaphragm . is this what i need it says DIAPHRAGM FOR 3-WAY VALVE . thanks