Sargent EC328 Series Systems
Official technical documentation and workshop diagnostics for EC328 Series Systems.
View official manual on manufacturer's site ↗Technical Specifications
Output 230vRCD protected, 3 x MCB outputs of 10, 10 and 6A via 2 x 9 way connector
Input 12v2 x 20A battery inputs via a single 6 way connector
Solar Input1 x dedicated solar panel input (20 to 120W panel) via a 4 way connector
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
N/A | No 230 volt output from PSU Possible Cause: Connecting lead between the site and leisure vehicle not connected. | Check and connect the lead. Check also the input connector at the base of the EC328 PSU. | DIY Safe |
N/A | No 230 volt output from PSU Possible Cause: RCD switched off. | Reset the RCD. | DIY Safe |
N/A | No 230 volt output from PSU Possible Cause: RCD not operating correctly. | Check supply polarity; if the RCD continues to fail, contact your dealer, as there is probably an equipment or wiring fault. | DIY Check / Tech Fallback |
N/A | No 230 volt output from PSU Possible Cause: MCB switched off. | Reset the MCB by switching OFF (down position) then back ON (up position). If the MCB continues to fail, contact your dealer, as there is probably an equipment or wiring fault. | DIY Check / Tech Fallback |
N/A | No 230 volt output from PSU Possible Cause: No or deficient supply from site. | Contact the site warden for assistance. | Professional Intervention Required |
N/A | No 230 volt output from PSU Possible Cause: Other fault. | Contact your dealer. | Professional Intervention Required |
N/A | Control panel has no display Possible Cause: Batteries discharged, EC328 PSU charger switch off, or mains supply not connected. | Check batteries, turn the EC328 PSU charger switch on, and ensure mains supply is connected. Check the control panel connecting lead at the EC328 PSU and behind the control panel. Contact your dealer if the fault persists. | DIY Check / Tech Fallback |
N/A | 12v power turns off Possible Cause: Battery save feature has operated to protect the vehicle and/or leisure battery, or the engine has been started and all equipment has been disconnected to meet EMC requirements. | This is normal protective behaviour in both cases - no fault action needed. | DIY Safe |
N/A | Control panel display corrupt / erratic function Possible Cause: Control panel software may have crashed. | Reboot the control panel by turning off the EC328 PSU charger switch and removing fuses 1 and 2 at the EC328 PSU (2x 20A fuses for the leisure and vehicle batteries). Wait 30 seconds then replace the fuses and turn the charger switch on. Alternatively, remove the bezel at the control panel by pulling down in the centre at the bottom, unplug the control panel multi-way connector, wait 30 seconds, then plug back in and reassemble. | DIY Safe |
N/A | Control panel contrast poor Possible Cause: Contrast preset needs adjusting. | Remove the control panel as for a reboot but do not unplug it. Carefully adjust the contrast preset (small adjuster) on the back of the control panel using a jeweller's screwdriver. | DIY Safe |
N/A | Control panel current reading incorrect Possible Cause: Current sensor needs recalibrating. | With the charger switch turned off and the power turned off at the control panel (no LEDs on), scroll down the display until battery current is shown. Hold down the select button (left arrow) until 'calibrating...' appears; keep the button pressed until the battery current reading reappears, then release. The reading should now be correct. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: No 230v supply. | Check all the 230 volt output fault causes/remedies above. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: Charger not switched on. | Switch the charger switch on (I) position - the switch will illuminate. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: Battery not connected and/or charged. | Install a charged battery. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: Power switch on control panel not switched to ON. | Turn the power on at the control panel. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: Battery flat / battery fuse blown. | Recharge the battery, check fuses, and check charging voltage is present at the battery. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: Fuse blown. | Check all fuses are intact and the correct value fuse is installed as per the fuse table. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: Equipment switched off / unplugged. | Check the equipment is switched on and connected to the 12v supply. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: PSU overheated / auto shutdown operated. | Reduce the load on the system and allow the PSU to cool down. The PSU will automatically restart when cool. | DIY Safe |
N/A | No 12 volt output from PSU Possible Cause: Other fault. | Contact your dealer. | Professional Intervention Required |
N/A | Pump not working Possible Cause: Pump switched off at the control panel, or fuse blown. | Turn the pump on by pressing the pump button at the EC328 control panel (tap symbol). Check the pump fuse. | DIY Safe |
N/A | Pump turned off unexpectedly Possible Cause: Fuse blown, or the internal/external pump feed setting is incorrect. | Both the internal and external pump feeds are controlled from the EC328 control panel - ensure the pump switch (tap button) setting matches your desired requirement, and check the pump fuse. | DIY Safe |