First, be sure the thermostat is set to “cool” and that the set temperature is well below your existing room temperature.
Second, make sure there aren’t any blown fuses or tripped breakers. If this is the problem, simply reset the breaker or replace the fuse. If it continues to be a problem, you should consider modifying your electrical. Third, make sure the power switch is turned on and that the outdoor condenser’s power switch (mounted on the outdoor unit) hasn’t been turned off. Also be sure the 240-volt disconnect next to the compressor (usually in a metal box mounted on the house wall) hasn’t been shut off.
If you have checked these items above and your air conditioner is still not cooling, call 1-877-757-1141 or request an appointment online.