I have a Lennox m/n 13ACD-048-230-1 outdoor unit. I just noticed that the outdoor unit, turns on, then off after a few seconds, then after a longer time turns on, then off after a few seconds etc. until I went in the house and turned off the thermostat. The thermostat will click on, the indoor air handler turns on, the the outdoor unit turns on and off, on and off, as described above. Took the cover off of the outside unit and depressed the contactor switch, the unit turned on, I let it go after 10 seconds or so and the unit turned off. The capacitor looks OK. That is all I know. Any help for diagnosis and repair would be greatly appreciated.