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Mend Sime Super 90 Fan Replaced Valve Hot Water

Sime super 90 Fan?

Have replaced the diaphram on the 3 way valve, and this seems to be OK.
When I turn the hot water tap on, should the fan start first, or should it ignite first. I am not getting neither. Please help.

Trevor Baker
February 2008
fan first

hi-spec plumbing & heating
February 2008

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