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Mr. Fred ScottAug 19, 2025
Why is my Central Pneumatic Air Compressor not building enough pressure?
- KKathryn JohnsonAug 19, 2025
If your Central Pneumatic Air Compressor is not building enough air pressure, start by checking the inlet and outlet filters and clean or replace them as needed. Have a technician clean or replace the check valve, if needed. Verify the compressor is large enough for the job by checking if the accessory CFM is met by the compressor; if not, a larger compressor is needed. Reduce air pressure, then check all fittings with a soap solution for air leaks and tighten as needed, but do not overtighten. Replace any narrow hoses or hose connections with wider ones. Drain the oil and refill to the proper level with the recommended oil if the crankcase oil is too thick. Note that higher altitudes require compressors with greater output.
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