vaillant ecomax 824 2E boiler - how to re-fill system after bleeding and emptying 1 radiator, pressure reading 0 cannot turn 1 of black taps under boiler
You have to get both taps to turn - they should be connected with a flexible hose. Turn the one from the smaller pipe first, followed by the one on the larger pipe and water will flow into your boiler.
John
December 2009
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