Isolate Mains Power to appliance as per TOPs P4
Mains Water OFF
Boiler discharged & drained
Undo the nut on the central heating return bend
Remove the 'R' clip on the connection at the manifold and remove the filter
Mains Water OFF
Boiler discharged & drained
Undo the nut on the central heating return bend
Remove the 'R' clip on the connection at the manifold and remove the filter
Observation:
Inspect the CH filter for any signs of damage and blockages.
Isolate as per TOPs P4
and refit as necessary