A/C not working -- unable to adjust at thermostat and finally the actual unit would not turn on. I thought initially that it was my Peaksaver thermostat ( had had trouble with this a few years ago and the problem seemed to be the same). Called Peaksaver who sent their tech. who said the problem was with my actual A/C unit. Called RB Heating. Dave came promptly, on a Saturday, and quickly diagnosed and fixed the problem. Excellent service. Thank you. Debra McCann