Speedaire model #3Z406G
by Richard Schneider
Speedaire model #3Z406G compressor
The pressure switch on my Speedaire model 3Z406G (1-hp)has failed. I need to replace it but finding the exact replacement part is impossible. I need to substitute another p-switch (100psi max)complete with unloader valve. Yes, the compressor is old but it doesn't have more than a couple of hundred runtime hours on it. Any suggestions?