What to do if there is no air output from OUT1 or OUT2 ports in SMC Networks IP8101 Valve Positioners?
- CCourtney TylerAug 4, 2025
If there's no air coming from the OUT1 or OUT2 ports, and the valve positioner isn't moving, here's what you can check: * First, make sure the supply pressure setting of the regulator is correct. * Next, ensure the correct input current (4 to 20 mADC) is being supplied. * Inspect the piping and fittings for any air leaks. * Verify the correct operation mode is selected (auto or manual). * Check the pilot valve for clogs in the fixed orifice and nozzle, and clean if necessary. * Finally, adjust the balance current.