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Morning. Quick explanation of why I'm looking for this elusive little gadget: DHW only fires when the hot water tap is turned to delivery quickly, but under those conditions the water passes too quickly through the exchanger to get much heat in it. Any slower and the boiler shuts off the...

Hello all. Steve here, desperately needing info if anyone has it please? I have a new PCB for my SE80 but the fan/pressure switch/thermostat connector block has 1 pin more than that which it is replacing. Background: 4 weeks ago I got the dreaded lockout flashing code 60 (ionisation pcb...