Vincent Moy Posted July 22, 2009 Share Posted July 22, 2009 Hi all, As I posted earlier my oil press. switch is not working. I took it out and tested it with an ohmmeter today and I got about 40 on the R x 1k scale. I'm not sure if it's normal or not. Since there's no pressure the contact should be connected (grounded), hance, the ohms should be close to 0 (current can go through, lite up the indicator) . Am I right? Link to comment Share on other sites More sharing options...
QuadManiac Posted July 26, 2009 Share Posted July 26, 2009 Hi all, As I posted earlier my oil press. switch is not working. I took it out and tested it with an ohmmeter today and I got about 40 on the R x 1k scale. I'm not sure if it's normal or not. Since there's no pressure the contact should be connected (grounded), hance, the ohms should be close to 0 (current can go through, lite up the indicator) . Am I right? Assuming it is a switch driving an oil warning light, and not a transducer driving an oil pressure gauge, you are correct. The switch, when under no pressure, should measure no more than a few Ohms. Under pressure, it should be open, or infinite Ohms. It is likely your switch's internal contacts are worn out. Link to comment Share on other sites More sharing options...
Recommended Posts