Sullivan compressor builds no air

by Sean
(Freely, Colorado)

Will run at full throttle all the time, does not build any air.

It’s a Sullivan, what can I do to check it?

Comments for Sullivan compressor builds no air

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Feb 08, 2019
Sullivan compressor runs, no air ?
by: Doug in

First, do you know the model number - e.g., D185? Have a manual for it?

Second, you have oil in the sump, right? Then check the following for


Start/Run valve in the START position - Move the Start/Run valve to the RUN position and retest.
Service valve open - Close service valve and retest.
Service line leaks - Repair any leaks found and retest.
Compressor inlet air filter restricted - Replace the air filter and retest.

Finally, is this unit "new", new to you, or an old friend?

Please let us know what you find.

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