Answer
When the compressor keeps restarting although the air tap at the spray jet is shut, the manual blames a pierced air tube or a leaking coupling. Fit new gaskets, seal the couplings, or replace the jet's air tap. When the compressor runs but the screw does not turn, either the air outlet at the nozzle is clogged or the air hose is kinked; clean the nozzle with the proper cleaner and straighten the hose.
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Reviewed by our parts specialists from IMER manuals and parts books. Check the part number on your machine or in its parts book before you order. Not sure? Ask a parts specialist.