50 mins ago: Worcester 30 Cadillac combi boiler won’t fire up and the EA?

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Mend Boiler High Making

The boiler makes a high pitched whistling noise when it turns on?

the boiler is making a high pitched whistle when it comes on - any ideas please?

Bevo
December 2010
Mend Heating, Home Heating Systems
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Mend Heating, Home Heating Systems
Mend repair fix home heating systems