Halstead ace high boiler wsnt firing up on demand for hot water, had split diaprham changed and pin is contacting micro switch but still no joy, could microswitch need replacing?? Everything else works ok.
SOunds lik it, make the contact for the microswitch manually with a screwdriver without running water, should have an audible click as switch operates, switch could be goosed
rawplumb
March 2010
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