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Hi John the immersion was on from 12.00 to 07.00 with one at the moment, the second 2.5mm feed going in today. I will check the elements etc this afternoon. Thanks ;)

Hi John it's proving to be a bit of a task to work out whats going on! I have set the tank stat to 50 and the Thermowatt immersion heater is set to 55-60 as standard (I have a smart one to go in) but this morning doing a continuity check across the tank stat it shows a short which means the tank...

Hi John thanks for the reply, Either end of the tank about 40cm from the ends, it is a Horizontal tank, John. :)

That's exactly what has been done Stem? thanks for replying :)

Thanks John I get that whichever way I look at it the HW 2 port is not being fed through the Tank Stat if I connect the brown wire from the valve to the tank stat switch side it works as it should?

Thanks for the reply, if I do a continuity check it shows the contacts are open, it appears the 240v to the 2 port is fed from elsewhere not through the thermostat as per S plan, just a tad confused as I can't trace the cause if it weren't PCB unseen it would be easier :(

I have had a 250l horizontal tank installed in the loft, my question is it has two 3kw immersions is one enough to fully heat the tank or is it best to use the two? the tank is also supplied with only one, I had two just in case of a failure. Thanks for any pearls of wisdom :)

Hi all, I have a problem with the wiring center! it all works to a large extent but! when the Hive switches on the HW it overrides the tank stat which is not calling for heat and 240v appears on the brown wire on the 2 port valve. I have cut all the requested links for an S plan system. Any...