Went to this job today and was there quite a while, it's a baxi boiler, unvented cylinder upstairs.
I get get there, boiler works fine on ch, put how to constant nothing, light comes on at programmer but no 'click' sound. So quick job swap programmer over - no change.
but if I turn he to constant, divertor powers over. Got 240 between earth and orange and also at grey. So electrically everything seems ok. Just the boiler won't fire.
Another thing, with old programmer divertor does not power over. So this at least to me proves dodgy programmer plus another fault.
With ch running and hw valve held open cust will have hw.
technical were stumped, they said there is no reason the boiler shouldn't fire following these tests. He said try changing the hydraulic pressure sensor. Have ordered this but not entirely confident this will solve the issue.
could there still be a prob with the divertor? Actually leaning toward pcb myself but tech said it can't be that.
Also pressure on boiler is fine, and no error codes.
I get get there, boiler works fine on ch, put how to constant nothing, light comes on at programmer but no 'click' sound. So quick job swap programmer over - no change.
but if I turn he to constant, divertor powers over. Got 240 between earth and orange and also at grey. So electrically everything seems ok. Just the boiler won't fire.
Another thing, with old programmer divertor does not power over. So this at least to me proves dodgy programmer plus another fault.
With ch running and hw valve held open cust will have hw.
technical were stumped, they said there is no reason the boiler shouldn't fire following these tests. He said try changing the hydraulic pressure sensor. Have ordered this but not entirely confident this will solve the issue.
could there still be a prob with the divertor? Actually leaning toward pcb myself but tech said it can't be that.
Also pressure on boiler is fine, and no error codes.
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