This afternoon the radiators started getting hot even though the thermostat was turned right down, I switched the switch on the front of the boiler (Potterton performa 24) to water only and the boiler was still fired up. I also switched the timer control to the off position and it was still alight, so now ive turned it off completely, Any suggestions or reasons for this would be much appreciated thanks.
It does sound like the diverter valve.
these can be replaced easily, as it is the actuator or head which is at fault, and the just screw on/off. Any one can do it,=. Just note the model number, go to a plumbers merchants get the actuator, and refit. take a note of the electrical conections, make sure to turn off at mains and refti/ recoonect exactly as was.
bd3cc - isn't the Potterton Performa 24 a combi boiler ?
Therefore it will have a diverter valve ?? not a three port valve as you're describing - big difference and not easy to change if you're not sure what you're doing!!!
If you actually read the post I am not saying a three port valve cannot be described as a diverter - the point I was making is that it's a combi - he is saying to change the actuator head/motorised valve - if it's a combi it might not have one, if it does - it might not need re-wiring.
If people want the correct advice they need to give the correct info - as a TRADESMAN I am explaining that there is a between a three port diverter valve and a diverter valve, the motorised head or actuator cannot be changed as described.
It can be described as a three port diverter valve, or a two port diverter valve. But 'diverter valve' alone would normally be taken as referring to a combi boiler
I have asked before and you either refused to reply or didn't see my post, I asked if you were in the trade or had any trade behind you ? without the reply I have to assume not. I am - the advice I offer is correct.
If it's a hydraulic diverter valve, where's the actuator/motorised valve ? how would I change it ?
Sorry - missed the - (puts wooden spoon back in drawer!!) part of your post.
I assume that was to indicate you were 'pulling my leg'. Although haven't a clue what it means, must be a regional thing ? or an age thing as i'm only 25.
Or is that the clue to your trade ? baker or chef ? lol
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by cdk7474 » Sat Apr 25, 2009 5:13 pm 
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