It turns on with thermostat settings does not produce any liquids Oasis #2200L

I'm writing this in the most general terms because the model #2200L does not show up in any list I have of Oasis dehumidifiers, but there is an Eva-Dry 2200 solid-state (Peltier Effect) dehumidifier.

First, make sure the plumbing to the tank is not leaking. If the water is dribbling out elsewhere and evaporating again, that defeats your purpose.

Second, make sure both the hot side and the cold side of the refrigeration unit are clean. If the hot side radiator (condenser in a mechanical unit) is clogged with dust, the heat builds up in the system and it is unable to cool the cold side (evaporator) effectively. If the cold side is too dirty, it will be insulated from the air flowing through and will not cool the air sufficiently to condense out the moisture. Also, check the fan(s) to make sure they are spinning at full speed and aren't loaded up with dirt.

If this all looks good, then you have a problem with the operation of the refrigeration unit. In a mechanical unit, it is probably a loss of refrigerant or a worn-out compressor.

In a solid-state unit, it could be a power supply failure (cheap parts, but some labor to diagnose required) or a degraded thermo-electric module (easy replacement but about as expensive as the entire unit). The power supply is more likely to fail.