Supco Hard start capacitor on Coleman A/C
I have a 1996 camper with a Coleman A/C. I bought the Supco SPP6E. My A/C has 2 round capacitors, one small and one large. The small one has 2 wires and the large has 3 wires. Which one do I replace?...
Forum Discussion
Dutch_12078 wrote:
The SPP6E works fine on my Dometic/Duo-Therm 13.5 A/C's. The capacitance of the SPP4E and the SPP6E are the same, and I went with the recommendations of RV Tech Chris Bryant in choosing the 6E's. The packages I bought show the voltage rating as "90-277VAC". On my A/C's, the smaller round black capacitor is the compressor start capacitor in series with a Cera-Mite PTCR. Both were replaced by the SPP6E. The larger three terminal capacitor is the run cap for both the compressor and fan motors. My Honeywell digital thermostats prevent "instant" A/C restarts anyway, so that's not an issue.
Yes, my diagram shows the small (2 wire) as the start capacitor and the large (3 wire) as the run capacitor.
FYI, A/C works fine plugged into an outlet, just won't start with my 3,000 watt generator. Same generator I used all of last year.
