Hot water cylinder on 80c - will this cause any damage?

[webbstuart176@gmail]

Hi, I need to replace my 3 port valve as my heating is not working. Have wacked up the cylinder to 80c so that the hot water warms the rads as a temporary measure - will this cause any damage short term? I know it should be on 60c

 

[AdvanceHelpline]

Is the cylinder unvented? It may cause the relief valve to drip.

 

[webbstuart176@gmail]

No it's vented.

 

[scoobydo123]

What make and model is the 3port maybe you can just change the head? Or if the heads are not available then perhaps just a case of the microswitch is faulty rather than a mechanical issue. Or could be the syncro motor

 

[Hot&Cold]

Have wacked up the cylinder to 80c

Have to assume there is a TMV fitted to prevent scalding .

Yes.

 

[webbstuart176@gmail]

What make and model is the 3port maybe you can just change the head? Or if the heads are not available then perhaps just a case of the microswitch is faulty rather than a mechanical issue. Or could be the syncro motor

It's a Honeywell. I'm going to change the motor tonight to see if that fixes it. How do I diagnose/test it so that I can see what the problem is?

 

[webbstuart176@gmail]

Have to assume there is a TMV fitted to prevent scalding .

Yes.

I have electric shower and dishwasher so we literally never ever use hot water from the taps.

 

[75pete]

Your hot cylinder should have a balancing valve, shut it in then reopen say half a turn. Reset your temp, now draw off a sink full of hot. Your boiler should kick in to try and heat the cylinder and at the same time your rad will get nice and hot. The boiler will continue to fire until the hot water temp is reached.

 

[cross thread]

turn boiler stat down to 60 to stop overheating

 

[scoobydo123]

Why not set the flow on the boiler so cylinder stat doesnt get satisfied thus not having this stored hot water above the "Normal" Hopefully by now fixed anyway rather than having it parked in the mid postion