Just wanted some advice bought a compressor with a broke pressure switch the black box on top of the compressor been told its not very simple to change £25 part but if i get an engineer out to swap it will be £160
If it's the standard type £15-£20 should get you a new one, easy enough to fit, the only tricky bit would be the thin pipe connected to the unloader valve.
Can we have a photo of the switch & compressor so we know exactly what we're dealing with.