Fixing a stuck microswitch in a 2-port zone value, which was causing my boiler to fire erratically!

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Tomas McGuinness

2 weeks ago

Fixing a stuck microswitch in a 2-port zone value, which was causing my boiler to fire erratically!

Fixing a stuck microswitch in a 2-port zone value, which was causing my boiler to fire erratically!