Brilliant isn't it, I reply to the post below with an opinion about combi's being great and twelve hours later mines kaput.

So I hope someone can help with this. 

I've got a Worcester 240 combi RSF, here's the problem.

Turned off the central heating today as the weather picked up. Just tried to do the washing up and hot water is tepid. 
The boiler fires up fine (demand light on, flow rate the same as always) but all I get from the tap is lukewarm water.
The FLOW pipe for the central heating gets hot as does the nearest radiator.

I had no hot water a couple of years ago but there was no demand light on and I changed the diaphragm in the diverter valve which did the trick (it was perished).
Is this valve playing up again or is it something else completely different?

Any help on this matter would be a real help.
TIA.
Dave

"dave smith"  wrote in message
news:aI2_d.23417$3A6.2018@newsfe1-gui.ntli.net...
Brilliant isn't it, I reply to the post below with an opinion about combi's
being great and twelve hours later mines kaput.

So I hope someone can help with this.

I've got a Worcester 240 combi RSF, here's the problem.

Turned off the central heating today as the weather picked up. Just tried to
do the washing up and hot water is tepid.
The boiler fires up fine (demand light on, flow rate the same as always) but
all I get from the tap is lukewarm water.
The FLOW pipe for the central heating gets hot as does the nearest radiator.

I had no hot water a couple of years ago but there was no demand light on
and I changed the diaphragm in the diverter valve which did the trick (it
was perished).
Is this valve playing up again or is it something else completely different?

Any help on this matter would be a real help.
TIA.
Dave

i had a simular problem with mine recently
it turned out to be that the boiler had lost pressure
and needed to bre repressurised it was at 1 when cold
and not the 1.5 that i normally have it set at

mine is also a Worcester combi

whilst it made my water hot again
it is not back to its former red hot situation
so i think it is something else as well

So anyway repressurise and let me know how you get on
mine has been in for 5+ years now so i s'pose its time for bits to start
going west....