Is your unit not turning on? Make sure your thermostat is working properly and replace the batteries if needed. You can also check the circuit breakers to see if the switches for your AC system are tripped. If not, your compressor and fan controls could be worn out from having your system turn off and on too frequently. At Donovan Heat & Air, our experienced technicians can diagnose your problems and perform a Ruud air conditioner repair to quickly restore your indoor comfort.