My worchester 35cdi2 pressure goes from 1bar to 3bar in a few hours, has a new expansion vessel and water to water heat exchanger and is also pulsing when running hot water, not sure what to do now, can anyone help
If pressure is rising without heating on than filling loop letting by water or plate heatexchanger leaking within
Switch off main than test one at a time.
k
June 2010
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