N2-GEN™ HPC Deployable — Troubleshooting – South-Tek Systems

Applies to: N2-GEN™ HPC Deployable (HPC-01DD-A)

This article covers common symptoms, probable causes, and corrective actions for the N2-GEN™ HPC Deployable. Work through the simpler checks first before escalating. If an issue cannot be resolved using the steps below, contact South-Tek Systems' service department.

⚠ WarningUse proper precautions when performing any electrical troubleshooting. Ensure the system is powered off and unplugged before accessing internal components unless the procedure specifically requires power to be on.

System Will Not Power On

Possible Cause	Corrective Action
Power plug not fully seated	Confirm the IEC 60309 connector is fully engaged and all electrical connections are secured.
Over-current protection tripped	Locate the over-current protection in the electrical control panel and confirm it is in the ON position. If it is already in the ON position and the issue persists, cycle the main circuit breaker.
Power source does not meet specifications	Confirm the power supply provides 208–240 VAC / 50–60 Hz / 1 Phase / 17.6 A. The HPCD must only be operated with an electrical input that matches the listed specifications.

System Powers On but Booster Does Not Start

Possible Cause	Corrective Action
Booster switched off or valves incorrectly positioned	Confirm the booster power selector switch is turned to the right (on). Confirm the outlet bleed valve (left) is turned fully clockwise and the outlet shutoff valve (right) is fully counterclockwise.
Over-current protection on booster has tripped	Locate the over-current protection on the front of the booster and push it back into place. If the booster continues to trip the over-current protection repeatedly, there may be an issue with the circuit breaker or the booster itself — contact South-Tek Systems.

Compressor Will Not Start After 2-Minute Delay

Possible Cause	Corrective Action
Residual pressure greater than 1 PSIG in the compressor	Relieve pressure by carefully pulling the safety relief valve on both compressors. If this occurs frequently, replacement check valves may be required — contact South-Tek Systems.

System Stuck in Standby / No Pressure on High-Pressure Line

Possible Cause	Corrective Action
Booster power selector switch off or power disconnected	Confirm the booster power selector switch is turned to the right and that the unit is fully powered on.

System Not Reaching Desired Cylinder Pressure

Possible Cause	Corrective Action
Pressure switch set incorrectly	Reset the pressure switch. Contact South-Tek Systems for assistance with this step.

ℹ NotePressure gauges are accurate to ±3% full scale, which can exceed 150 PSI at high pressures. If the gauges do not read exactly 2200 PSIG or 3500 PSIG when the system shuts off, this is normal. All pressure switch cutoff values are factory-set using a master gauge and are accurate even when panel gauges read slightly above or below the target.

Excessive Noise

Possible Cause	Corrective Action
System leak	Check all connections with soapy water. Locate and correct any leaks before resuming operation.
Worn compressor or booster components	Contact South-Tek Systems to schedule a service visit for compressor or booster valve inspection and replacement.

Cooling Fan Not Running

Possible Cause	Corrective Action
Fan worn out	A spare replacement fan is stored in the top compartment of the case. Replace the non-functioning fan with the spare.
Debris lodged in fan blades	Unplug the system from power and attempt to spin the blades by hand. If they do not spin freely, use a tool to remove any visible debris from the blades.

⚠ WarningDo not operate the system with a non-functioning cooling fan. Overheating can cause permanent damage to internal components. Restore fan operation before resuming use.

When to Contact South-Tek Systems

Contact South-Tek Systems' service department if any of the following apply:

A compressor trips its relief valve repeatedly and the issue cannot be resolved by the steps above
The booster over-current protection continues to trip after being reset
Excessive noise persists after checking for and correcting leaks
The pressure switch requires adjustment
Any symptom is not covered by the troubleshooting steps above

For booster, membrane, or compressor issues beyond field-level troubleshooting, the unit may need to be returned to South-Tek for service. Refer to N2-GEN™ HPC Deployable — Filter & Preventive Maintenance for information on the Life Cycle Maintenance program and the RMA process.

Contact South-Tek Systems

Phone: (910) 415-1880
Email / Ticket: support@southteksystems911.zendesk.com