I have a wiring diagram for an air conditioning unit. On the diagram the run capacitors indicate that a "red dot" on the capacitors indicates which corresponding colored wire attaches there. However, the capacitors are rusted (an outside air conditioning unit) and no "red dot" can be seen on either capacitor nor any other indication of polarity. I can make out that the capacitors are rated at 370VAC. That being the case, AC vs. DC, can I not use non-polarized 370VAC capacitors with correct uF for replacement? Thanks.