A plumber came round to check a radiator that wasn't working and turned off all the radiators which fixed the issue.
Now I'm noticing that the combi boiler and all the radiators are making a continuous whooshing sound even when turned off.
How do I fix this? Thanks.
Now I'm noticing that the combi boiler and all the radiators are making a continuous whooshing sound even when turned off.
How do I fix this? Thanks.
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