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Andrew Smith
Andrew Smith, Plumber
Category: Plumbing
Satisfied Customers: 3666
Experience:  City and Guilds qualified plumber
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Have a biasi 90sf Boiler.The boiler is firing and getting hot

Customer Question

Have a biasi 90sf Boiler.The boiler is firing and getting hot water through the taps but once i try to use the shower the boiler cuts out.wondering if something s restricting the flow.
Submitted: 3 years ago.
Category: Plumbing
Expert:  Andrew Smith replied 3 years ago.

Andrew Smith :

You may find that the washer in the divertor valve is stretched and you are below the triggering flow rate now.

Andrew Smith :

Try turning the temperature on the boiler down and running the shower faster - if this works then you will need to rewasher the divertor valve