Technical support

Turn off power and fully depressurize the system. Check the pressure sensor ground, power, and signal conductors against the manual. At zero pressure, the sensor signal should be approximately 0.5 V and its supply should be approximately 5 V DC.

If the displayed pressure remains high, open a ticket with the measured supply and signal voltages and the unit serial number. Once it is open, add the wiring photo to the ticket.

Confirm the required sensors and power connections are installed, then restart the controller once. If the display remains blank, the menu remains unresponsive, or operation returns only after removing power, open a ticket with a description of the behavior. Once it is open, add the photo or short video to the ticket.

Verify that the valve is connected to the output and terminal specified in the product manual. Check that the required orifice is installed and clear. If a pressure sensor error appears at the same time, include the sensor supply and signal readings in the ticket.

Two single-compressor controllers can be linked for coordinated operation. Systems requiring multi-duplex control, N+1 staging, or lead-lag rotation need an engineering review. Open a ticket with the compressor count, motor ratings, starter or VFD details, and the operating sequence you need.

Never connect a motor directly to an internal controller relay. The relay switches a control circuit for a magnetic starter, solid-state relay, or VFD input. The fused disconnect and motor starter remain separate protective equipment.

Confirm the reel sits flat, its key is engaged, and the tension and idler components move freely. Recheck the configured string diameter and turn count. If the problem continues, open a ticket. Once it is open, add a short video showing the complete winding path and reel.