I took current readings at 60hz with both a digital and analog meter. Pressure gauges in the home are reaching critical at 130 plus psi so I know the pressure gauge is not reading pressure. The problem is the pump never stops or slows down and the pressure gauge switches between 3.01 PSI and 4.206mA. The VFD runs the pump just fine from zero to 60hz. If there's still no output, check the EMI board and circuit board. If the LCD head has no display, check the LCD board first, and then check the circuit board. Short-circuit the gauge outfit directly with two wires and it will be normal after short-circuit, indicating that the gauge outfit is damaged. Overload or over-voltage of the pressure transducer will also lead to damage of its measuring component, which may also lead to no current output Damage of the transducer's gauge outfit would also lead to no current output. If the circuit board of pressure transducer is damaged, it directly leads to no current output.
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