Are fish pond UV light ballasts typically somehow connected to the water pump?

Fish pond water is not being circulated by the pump/filtration system and the UV light is not on. The UV light ballast was submerged in water after several days of rain so that probably explains the light not working. But is the water pump also affected by this or a separate problem? Seems like the two would be separate (since aeration is a separate benefit of pumping the water from sterilizing it) but maybe it’s wired so that if the light is not working the water is not pumped (since if it were pumped it wouldn’t be sterilized). Maybe someone that has more experience can tell me what is typical or what might be causing the problem. Thank you!