Thanks @paul172
Reading more it looks like - Synergistic Research Purple Quantum Fuse Small (5x20mm) 250v Slo-Blo: 1A is the right configuration?
If there 2 and only 1 is active, then I assume I need to buy only 1 fuse and which of the 2 should I replace?
In 2015, @tedsmith says F1 is digital and that needs to be replaced. Is this still true with newer 2019 models?