intermittent air conditioning lite indicator, hot when off, cold when on

If the system was recovered and filled properly you may have a restriction, the engine fan isn't working properly, the compressor is going out, etc. More diagnosis is needed and using gauges is the proper method to figuring out what the issue is.If you prefer to bring it in, use this link to find a good shop near you. https://repairpal.com/repair-shops Alex