Set Appliance State:

Gas Off
Isolate Mains Power to appliance as per TOPs P4
Remove the combustion front assembly

Observation:

Thoroughly inspect the burner assembly for damage, restrictions and/or blockages.
Note:
1. Before the combustion chamber door is refitted and the appliance left in operation the burner door gasket MUST be replaced and new nyloc nuts used.
2. The burner does not need to be removed from the combustion front assembly for this test.
3. If the burner inspection is satisfactory do not reassemble proceed to the next inspection.