hi my ideal iser boiler wont shut down the cental heating is on constantly and the error code is t i have pressed off on the timer but still its on help does anyone know what to do?
t is h/water preheat but it seems the divertor valve is stuck in c/heating mode try turning boiler off at isolation switch a few times or remove divertor solenoid and push pin in centre of valve ( the divertor solenoid is on the far left turn anti-clockwise and pull)
brian
February 2011
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