Potterton Promax 15 Sl

[mkjonhston]

Hi,

I have a santon premier plus PP210B unvented indirect cylinder up at 2nd floor in conjunction with a POTTERTON PROMAX 15 SL placed down in the kitchen, and experience the following problems:

1) During summer time when we only need shower, everything works perfectly.
2) Once we turn the heating on during winter time, we get the following:
    a) The water pump (SurePump SP65/130) that sits just close to the Santon cylinder won't stop spinning once the boiler downstairs stops burning gas.
    b) Sometimes, the Potterson shows the lower-right LED (visible after detaching the magnetic lower cap) becomes blinking red, and the boiler won't start burning.
    c) A shutdown from the switch found close to the Potterson control panel for a couple of hours, puts the system back in function. The system will “recover” or start working normally sometimes if the reset (from the lower-right side of the boiler) button is pressed. When the pump does not stop working, I noticed that @ the reset button, there are visible the normal green LED but also a blinking red LED light … reseting it or power cycling the boiler will get rid of the red blinking light.

Does anyone have a guess of what might cause the above symptoms?

Thanks

 

[Rob_the_rich]

look at page 53 of the manual http://interpart.partsarena.eu/System/DATA/Dx/DS1/installation/S062/I51-S062/I51-S062.htm and tell us what sequence of flashing you have.

do you have 2 two-port valves (s-plan) or just a mid-position valve (y-plan)?

Did it work correctly at one time?