Isolate Mains Power to appliance as per TOPs P4
Observation:
Visually check boiler for water leaks.
1. Check the primary heat exchanger all around.
2. Check for staining that would indicate a water leak when boiler is operational
3. Check the inner flue
1. Check the primary heat exchanger all around.
2. Check for staining that would indicate a water leak when boiler is operational
3. Check the inner flue
