Tested big relay --- didn't get tone - no continuity. Going to test further --- but some good news: As I was looking for sources for these relays I found a company that bought up the remaining stock of spare parts for Tili (who are themselves no longer in business). He had several of these boards in a box collecting dust. Grabbed one and swapped it out --- everything works like a charm. Thanks for you help guys -- pointing me back to the relay saved me time and expense. I may post some photos of the old board and its traces to see if you have any ideas how to test the remaining relays - just for science. And also still quite interested -- a run capacitor -- is it essentially applifying a charge continuously after starting? Like in the above photos the run capacitors were both 250V --- is this just a max rating or are they actually providing 250V?.