My Coleman roof top AC unit has been giving some problems of late. (Coleman Model 86338766 - Mach3 I think) .Probably about 2000-01 vintage.
Normal start up is ok but once it reaches the set temp and cycles off, compressor would not come back on, tries and back off .... fan operation ok.
Climbed on top today and checked capacitors, found the start cap is open, other two checked good. (VOM check) pix attached. That should be fairly easy to come by for replacement I think.
Attached is the PTCR start device WSX-5CM Motor Starter. Question is does that need to be replaced also ... how can I check/test that? From searching it seems that a failure here can cause the cap to fail but in most of the cases I read about there was visible, physical damage to one or both, which I don't have.
So anyone with some experience??