Hello from Saskatchewan!

[Electronic M]

Welcome.

Definitely a good idea to change the capacitors. I have run some of my sets as daily watchers for years on end. If you replace the caps it should be more reliable, but daily use will eventually get it to the point of needing maintenance new caps(it should last longer between failures with new caps) or not....sweep tubes and occasional resistor drift/failure will cause need for repair of a 6+hour a week set in 1-6 years.