Sargent EC200 Series Systems
Official technical documentation and workshop diagnostics for EC200 Series Systems .
View official manual on manufacturer's site ↗Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | No 240 volt output - connecting lead between the site and leisure vehicle not connected | Connecting lead between the site and leisure vehicle not connected. | Check and connect the lead as per the mains connection instructions. Also check the input connector at the base of the PSU2007. | DIY Safe |
N/A | No 240 volt output - RCD switched off | RCD switched off. | Reset the RCD as per the mains connection instructions. | DIY Safe |
N/A | No 240 volt output - RCD not operating correctly | RCD not operating correctly. | Check supply polarity; if the RCD continues to fail contact your dealer, as there is probably a wiring or equipment fault. | DIY Check / Tech Fallback |
N/A | No 240 volt output - MCB switched off | 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 a wiring or equipment fault. | DIY Check / Tech Fallback |
N/A | No 240 volt output - no or deficient supply from site | No or deficient supply from the site. | Contact the site warden for assistance. | Professional Intervention Required |
N/A | No 240 volt output - other fault | Other fault. | Contact your dealer. | Professional Intervention Required |
N/A | No 12 volt output - no 240v supply | No 240v supply. | Check all the 240 volt output fault causes/remedies above. | DIY Safe |
N/A | No 12 volt output - charger not switched on | Charger not switched on. | Switch the charger switch on (I) position - the switch will illuminate. | DIY Safe |
N/A | No 12 volt output - battery not connected and/or charged | Battery not connected and/or charged. | Install a charged battery as per the battery type/selection instructions. | DIY Safe |
N/A | No 12 volt output - power switch on control panel not switched to ON | 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 - battery flat / battery fuse blown | Battery flat or 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 - fuse blown | Fuse blown. | Check all fuses are intact and the correct value fuse is installed as per the vehicle's fuse table. | DIY Safe |
N/A | No 12 volt output - equipment switched off / unplugged | Equipment switched off or unplugged. | Check the equipment is switched on and connected to the 12v supply. | DIY Safe |
N/A | No 12 volt output - other fault | Other fault. | Contact your dealer. | Professional Intervention Required |
N/A | Control panel has no display | Batteries discharged, PSU2007 charger switch off, or mains supply not connected. | Check batteries, turn the PSU2007 charger switch on, and ensure mains supply is connected. Check the control panel connecting lead at the PSU2007 and behind the control panel. Contact your dealer if the fault persists. | DIY Check / Tech Fallback |
N/A | 12v power turns off unexpectedly | Battery save feature has operated to protect the vehicle battery (the leisure battery is flat), 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 | Display fault or the control panel needs rebooting. | Observe the control panel handling instructions. Reboot the control panel by removing the control panel bezel, removing the two fixing screws, and unplugging the control panel connecting lead. Wait 30 seconds then reconnect and re-assemble. | DIY Safe |
N/A | Control panel contrast poor | Contrast preset needs adjusting. | Observe the control panel handling instructions. Remove the control panel as above but do not unplug it. Adjust the contrast preset on the back of the control panel using a jeweller's screwdriver. | DIY Safe |
N/A | Control panel current reading incorrect | Current sensor needs calibrating. | Contact your dealer for the current calibration process. | Professional Intervention Required |
Frequently Asked Questions
Q: Can I charge the vehicle battery from my system?
Our electronic PSU systems fall into two categories regarding vehicle battery charging: systems not based on CAN-bus and newer CAN-bus based systems.
For Manual Charging only systems (PSU2007 with EC200, EC225 with EC100, EC325, EC328, EC155 with EC50/51, EC176 with EC361/2/3): The default battery is the leisure battery. If the control panel power button is OFF, the mains charger charges the leisure battery as soon as it is switched on. If you turn the control panel ON, the mains charger stays connected to the leisure battery to keep it charged and powers the leisure loads along with the leisure battery. If you wish to charge the vehicle battery from the mains charger, you need to turn the control panel ON and then select the vehicle battery. The charger will then charge the vehicle battery and any switched-on leisure loads. Note: On EC100, EC200, EC325, and EC50/51 control panels, you cannot select the vehicle battery if it is below 10.9V. On EC328 control panels (V2.21 software), if the vehicle battery is above 2V and the mains charger is switched on, it can be selected for charge. If the mains supply disconnects while charging the vehicle battery, leisure loads will draw current from and discharge the vehicle battery. If the voltage is under the 10.9V cut-off, it switches back to the leisure battery; if above, it switches back when it reaches 10.9V. The leisure battery has a 9V cut-off which disconnects leisure loads to prevent further discharge.
For CAN-bus based systems (EC400, EC450, EC500, EC600, EC700, & EC800): These incorporate a smart charge feature which is on by default but can be disabled. When the mains charger is switched on, it connects by default to the leisure battery, but the vehicle battery is monitored. If the vehicle battery drops below 12.4V, the mains charger switches over to it for 4 hours, then drops back to the leisure battery for 4 hours, repeating if the vehicle battery is still below 12.4V. The smart charge feature does not require the control panel to be ON; as long as the system shutdown button is switched on, the feature operates unless disabled. If the control panel is ON, you can manually select the battery of choice on the control panel at any point in the charge cycle.
Q: Why does my EC155 control panel have flashing LED’s while I’m driving?
If you have the 2 LED’s flashing on the Leisure select & levels and the Vehicle select & levels while you are driving (on newer versions of the control panels with blue LEDs), this is completely normal and indicates that the EC155 is receiving an engine run signal and the internal split charge relay has engaged. In older versions of the control panel with green LEDs, the middle yellow LED will flash to indicate this.
When the EC155 detects the engine run signal it also shuts down power to the 12v habitation system.