worcester heatslave 20/25 hot water but no central heating?
the central heating has just been turned back on on my oil fired heatslave 20/25 only to find it does not work, normally we select on on the boiler turn the room stat and it come on . If you turn the boiler off at the mains the diverter valve arm moves .turn the power back on and the valve arm goes back in , but valve arm will not move across when you call for cental heating.
My Worcester Heatslave 20/25 is giving me central heating , but no hot water !
Peter A
October 2009
Hi, Just had the same problem. It was the programer on the front of the boiler, but if you are using a room stat you don't need it. Just refit the panel that came with the boiler from new or link the ch & hw control wires to the L terminal and then central heating will work off room stat only.
Yekralc
November 2008
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