Being a qualified gas safe engineer comes with responsibility. I was called out to a boiler breakdown on Saturday for a local letting agent. The tenant had reported a water leak.
I arrived at the property and was shown to the boiler by the tenant. I removed the boiler case and was staggered to see the damage within the case. The heat exchanger burner seal had failed and was spilling hot flue gasses into the boiler casing resulting in the plastic flue melting.
Nothing particularlay unusual with that, the seals have to be replaced every 2 years as recommended by the manufacturer for that reason.
What was disturbing is that the boiler had a landlord gas safety certificate done last month. As you can see from the photos the engineer had either failed to remove the case and carried out a insufficient landlords check or removed the case, acknowledged the fault and applied silver tape to try and stop the flue gasses leaking. Both of which are reportable to Gas Safe and RIDDOR reportable.