What to do if a Doosan P185WDOU-T4F (F89) Air Compressor will not unload?
- CCarol VargasSep 12, 2025
If your Doosan Air Compressor will not unload, there are a few potential causes to investigate. The inlet unloader may be malfunctioning, so inspect the valve and make necessary adjustments. Check the pressure regulator and regulation lines for leaks. If there is ice in the regulation lines or regulation orifice, apply heat to them and check the operation of DC electric heaters, if equipped. Finally, inspect for a plugged vent leak, and clean or replace it.