Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Isolate incoming water supply to appliance
Observation:
Remove filter from the DHW inlet manifold on the hydroblock.
Inspect the filter, it should be clear and unrestricted.
Is the filter clear and unrestricted?
Inspect the filter, it should be clear and unrestricted.
Is the filter clear and unrestricted?
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Isolate as per TOPs P4
and refit as necessary