Potterton Suprima no hot water

[eccy]

Hi all,

I am new to the forum and I have a problem with my Potterton Suprima (not sure if there is a model number or anything you may need to help), in that the central heating works perfectly, we had an issue with the hot water actuator valve, which I have since replaced thinking that this was the cause of it not heating the water up. It appears that I was wrong, because even with the new AV fitted and working as it should, we still have no hot water. I can hear it flowing through the pipes but when I come to the hot taps it is just cold water.

What could be the problem? I really need this fixing.

TIA for any help.

eccy

 

[stevetheplumber]

needs to be traced out with a multimeter to see at what point it fails if the heating works its not a boiler fault either wiring or external control

 

[eccy]

Is there a plumber on here local to Stoke-on-Trent who can come and have a look for a decent rate at all?

 

[jtsplumbing]

Have you checked the water level in the small roof tank, system may be partly out of water

 

[eccy]

It seems as full as it has always been.

 

[jtsplumbing]

Ok, then cold feed pipe from tank to where it connects to system could be blocked stopping water getting into system

 

[eccy]

How do I unblock the cold water feed?

Sorry for all the questions, I need to get this sorted.

 

[jtsplumbing]

How do I unblock the cold water feed?

Sorry for all the questions, I need to get this sorted.

Call someone in, requires cutting into pipework

 

[Millsy 82]

Have you got your programmer turned on?

Does the boiler fire up when just hot water is called for?

Do you have 1 or 2 valves in the airing cupboard (1 being a 3 port valve or 2 2 port valves)

Who changed the actuator valve? Is it correctly fitted and wired back in correctly?

 

[eccy]

Millsy, yes I have the programmer turned on, the boiler fires up and regulates the heat and the water pipes get hot (I assume signifying water being heated), there are 2 2 port valves on the system, one for heating and one for water. I changed the actuator and changed wire for wire, exactly how it was wired in originally when we moved into the house.

Would the ballcock in the F&E tank allow water through if the cold feed was blocked?

Thanks