Weird noise coming from boiler, it's an Ariston 24 E-Combi.
It's like a hissing noise and possible condensation is present from the pipes. When I turn the water off at the stop clock it stops making the noise. The water doesn't drip on floor so think it's condensation.
I possibly believe it's due to low pressure, when resting it's just below 1 when I turn hot water on it goes to above 1. I read that's why the noise is evident.
The boiler and hot water is working as it should be.
Do I need to do anything? Can you tell me how to increase pressure I've turned the dials by the filler loop but nothing happens.
It's working fine so don't know if I need to do anything.
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