Air bleed magnetic filter

Traveller 47 · Sep 28, 2024

Can someone please advise how to bleed air from a magnetic filter installed on a Worcester Greenstar boiler. I don’t want to clean it out as that was done by a professional engineer who seemingly left me with this problem. Specifically, should I close the valves either side of the filter before opening the top bleed valve? Should the boiler be turned off? Etc, etc
Comments appreciated.

ShaunCorbs · Sep 28, 2024

What type is installed and what’s the problem?

Traveller 47 · Sep 28, 2024

ShaunCorbs said:
What type is installed and what’s the problem?

I have attached a pis of the filter. The boiler is making sloshing noises despite having bled all radiators three times. So I assume the air must be in the filter.

ShaunCorbs · Sep 28, 2024

Air tap ontop of the filter inside the silver thing ontop of the cap

Traveller 47 · Sep 28, 2024

ShaunCorbs said:
Air tap ontop of the filter inside the silver thing ontop of the cap

Do I need to close the valves either side of the filter?

ShaunCorbs · Sep 28, 2024

Traveller 47 said:
Do I need to close the valves either side of the filter?

Nope if there’s air in there just open the bleed screw ontop if the filter unit water comes out and top it up

Traveller 47 · Sep 28, 2024

ShaunCorbs said:
Nope if there’s air in there just open the bleed screw ontop if the filter unit water comes out and top it up

OK, thanks, when you say top it up, how can that be done without removing the top of the filter and admitting air?

ShaunCorbs · Sep 29, 2024

Traveller 47 said:
OK, thanks, when you say top it up, how can that be done without removing the top of the filter and admitting air?

Via the filling loop

Air bleed magnetic filter

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