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How do i stop the time from flashing on the Siemens RDJ100RF?

How do i stop the time from flashing on the Siemens RDJ100RF unit
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Mend Optomax HE 31C Water System Worked

Re no hot water my Optomax HE 31C?

All summer the hotwater system has worked but now we have put the central heating on the water is cold. Can you help please.

chris
October 2009
OptomaxOptomax HE 31CHeating, Home Heating SystemsWater System Worked

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