Hello everyone, on a recent call I found the start capacitor blown on a Trane Heat Pump. I replaced all start components start cap Run Cap and relay. fired up unit and it ran fine checked amp draw amps ok. Heat pump made it 1 week and now the Start capacitor is bad again! Is it possible I got poor replacement parts? I installed the exact components that were originally in the unit as this particular heat pump was still under warranty. should I look towards the compressor or is it possibly the contactor acting up? Thanks for any advise.