No because the microswitch sealed from the body of the
pressure switch. Get a test light and check the leads to the switch. Check it in both NO and NC modes to see it it is still grounded. We have never had a bad
pressure switch but i guess it's possible for the microswitch to have been damaged. If you get no resolve send the switch back with your proof of purchase and we will replace it. If it still does it then you know it is wired wrong some where. I would still check all my leads from the relay with the test light.