1. my compressor starts runs but when pressure reached blows relief valve and continues to run can you help with a fix ??

    • willyr says:

      Not knowing the make or model makes a specific diagnosis difficult. Typically, if an air compressor runs on until the PRV blows off, it’s the pressure switch that is at fault, and it should be replaced before the compressor is used again. That is, of course, if the PRV is letting go at a pressure level above what is the normal cut out of the compressor.

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