Hot water and radiators too hot!

[julieg]

Hi there. My hot water and radiators are too hot. I've also noticed that when my heating is switched off and the water comes on that one of the radiators gets warm. Any ideas?

 

[diamondgas]

Sounds like your boiler control thermostat needs turning down a bit julieg

 

[erpkid]

Back in the day one rad would be piped in with the hot water so that towels could be dried in summer and act as a heat dump for a gravity system - so this could be OK. If a modern house and system then the return from the cylinder has been incorrectly plumbed.

 

[BurstPipe]

If its a combi boiler it could be the diverter valve that isn't fully closing.

 

[Ermintrude]

Don't sound much like a combi? Bbu conversion with bath rad on primary?

 

[julieg]

Hi again. I originally started this thread about my radiators and hot water being too hot. Thanks for your replies, but since I posted my radiators have started making a funny hissing noise and there is also a strange noise coming from the boiler. The radiator noise even happens when just the hot water is on! Help?????

 

[Dotty]

What pressure you got it at Julie?

 

[julieg]

I hope i've looked at the right thing for this (would it be on a dial attached to a small red tank in the loft?) if so it's just under 1.5??????

 

[spanner]

How lonng has this been going on..??
Been a long time??
Suddenly??

 

[julieg]

How lonng has this been going on..??
Been a long time??
Suddenly??

Hot water too hot for quite a while now but the noises have only started in the last week.

 

[diamondgas]

Hi Julieg... Try turning the control thermostat down on the heating boiler first of all. If that doesn't resolve your issue I'd suggest you get yourself someone in!

 

[spanner]

Kettling of hot water at the boiler..maybe the hot water pump over running to the cold feed tank! What are the cold water taps like! Okay for cold water.. or are they coming out with warm water?

 

[spanner]

Like diamondgas suggest. At first. Check boiler thermostat also the the hot water thermostat of the cylinder
Hey!
Good luck
Alternatively get it looked at checked out!