Petrol pumps do have that problem, and did prolifically conk out during conditions of, say, Black Saturday. So, despite them being a firefighter supply pump, the engine side of that actually isn't that adequate to work at the 40°C+ conditions running flat out under those fire conditions. Let alone handle the ember attack, the radiant heat, and whatever other heat loads are applied on it. So, they do prolifically cut out, and in a lot of cases won't be able to restart.

So, they do need to be put in quite a special protected place to be much cooler than the ambient conditions, and must be protected from embers and all those other things to have any chance of operating. And you can understand that that can be quite tricky. A steel enclosure can be quite hot. You really actually need thermal inertia around it like a masonry enclosure to really get to a point where you could get a petrol pump through one of these events.

Pumps don't like having to try and suck water from a long pipe network, so they're recommended to put near the tanks.

Obvious major problems that we've already covered is the fuel tank is quite problematic, there's inadequate protection of the actual pump itself, it's going to operate flat out for x amount of time, might be half an hour to an hour and need refuelling, and they typically cut out under the worst of the fire conditions that present.

The degree that you need to ember-proof a pump enclosure like this is that you have to be as fastidious as you would with your house itself. So, absolutely down to the 2mm gaps and entrance to avoid the pump could shut down in an ember storm by sucking embers into the inlet.

Spray systems wetting down pump shelters won't prevent embers getting to and being ingested by that pump. We see time and time again that spraying water around the place just simply doesn't stop the ember storm. The embers don't suddenly go out because there's water around.