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valliant eco tec pro?

my boiler is showing f75 with red light on . no hot water are heating ' what can i do to to repair it , all so there is some water leaking from the boiler inside no pressure loss from the heating. can not find leak.

everton
November 2008

TEC Heating, Home Heating Systems Boiler Showing Red Light

the leak may be condensate from the flue
the lack of pressure may be air in the heat exchanger
if the auto ait bleed isnt working

b
November 2008

is there any possibility that the seals are leaking on the heat exchanger .or pipe seals ,and may be any sensors not working.

everton
November 2008

no pressure rise detected when turning on the pump

b
November 2008

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