Air Compressor: Can't adjust the output air pressure
The regulator controls the output air pressure. If you're unable to adjust the output air pressure, replace the regulator.
These repairs may help solve your Air Compressor problem:
Replace the air compressor regulator
The regulator controls air tool supply pressure coming from the tank. Replace the regulator if it doesn't properly regulate supply air pressure.
For manuals, repair guides, and specific part recommendations, enter your model number.