The moisture control board is not outputting good voltage to control metering system, why?
• The board is 120 volt input to operate and dc voltage to control VFD or SCR for metering system. Check 120 volt input voltage to make sure it holds steady. • Output voltage should remain from 0-12.5 DCV output to control discharge speed to device. • Disconnect wires from output +/- and check for DC voltage, if input is good than output should be able to measure DC voltage as you adjust potentiometer. If you cannot read any voltage replace board. • Adjust moisture control potentiometer and switch from plus to minus lights on and off. If you cannot adjust lights check to see if board is powering on each light as you turn pot.