Auto-Sleepers Ford Transit Custom Air Owner's Handbook (2023)
Sourced from Auto-Sleepers' 2023 owner's handbook for the Ford Transit Custom Air - the same document Auto-Sleepers' own site links to under both their 'Air Campervan' and 'Ford Transit Custom Air' download sections. If your campervan is a different age or range, some details may not match. Always cross-check against the handbook that came with your specific vehicle.
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
N/A | No power on 12V socket outlet Possible Cause: Fuse blown | Find fault and replace fuse with same rating | DIY Safe |
N/A | Continuous running of water pump Possible Cause: Pressure not set correctly | Adjust as page 7-1 | DIY Safe |
N/A | Habitation 12V does not operate Possible Cause: Vehicle ignition “on” | Switch “off” ignition | DIY Safe |
N/A | Battery does not hold its charge Possible Cause: Current being drawn | Check all appliances are off when not in use | DIY Safe |
N/A | Control Panel display corrupt / erratic function Possible Cause: Observe control panel handling instructions Control panel software may have crashed. | Reboot control panel by turning off the EC328PSU charger switch and removing fuses 1 & 2 at the EC328PSU (2x20A fuses for 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 | Battery discharges over a short time with appliances operating Possible Cause: Battery not fully charged | Fully recharge battery | DIY Safe |
N/A | Cooker Hotplate not heating up Possible Cause: Over temperature trip activated | Leave to cool down | DIY Safe |
N/A | 230V system inoperative Possible Cause: RCD/MCB switches tripped out | Reset circuit breakers | DIY Safe |
N/A | Water pump does not operate Possible Cause: Fuse blown | Find fault and replace fuse with same rating | DIY Safe |
N/A | RCD/MCB keeps tripping out Possible Cause: Overload on current consumption by appliance | 10A maximum available. Refer to dealer | Professional Intervention Required |
N/A | Heater not operating/cuts Possible Cause: Unit fault | Refer to dealer | Professional Intervention Required |
N/A | Pump not working Possible Cause: Setting incorrect | Both the internal and external pump feeds are controlled from the EC328 control panel. To alter the setting of the pump switch (tap button) Ensure the setting matches your desired requirement. | DIY Safe |
N/A | Reverse Polarity light is illuminated on PSU Possible Cause: Generator being used | The Reverse Polarity warning light is on when using my Generator. This is a normal side effect when using some types of generator. Instead of connecting the neutral conductor to earth, some generators centre tap the earth connection making both neutral and live conductors 110v above earth. This 110v difference causes the neon polarity indicator to illuminate. In most cases it is still safe to use the generator, but please consult the generator handbook for further information. | DIY Safe |
N/A | Control Panel current reading incorrect | Re-calibrate the current sensor as follows: With the charger switch turned off, and the power turned off at the control panel (no LED’s 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. Release the button. The current reading should now be correct | DIY Safe |
N/A | Fridge gas ignition not operating Possible Cause: Ignition control switch fault | Refer to dealer | Professional Intervention Required |
N/A | No 12 volt output from PSU Possible Cause: Other fault | Contact your Dealer | Professional Intervention Required |
N/A | Habitation battery not charging Possible Cause: Contacts dirty/loose on battery terminals | Clean and check for tightness | DIY Safe |
N/A | EC328PSU case becomes hot under heavy loads Possible Cause: Heavy loads causing high operation temperatures | ALWAYS ensure the ventilation slots have a clear flow of air. Do not place combustible materials against / adjacent to the EC328PSU. The PSU will shutdown if overheated and will restart automatically when cool. | DIY Safe |
N/A | Heater does not operate on 230v Possible Cause: Over temperature trip activated | Leave to cool down | DIY Safe |
N/A | Water gauge does not operate Possible Cause: Probe fault | Refer to dealer (check probe connections) | DIY Check / Tech Fallback |
N/A | Cooker Ignition not operating Possible Cause: Spark unit fault | Refer to dealer | Professional Intervention Required |
N/A | Intermittent operation of water pump Possible Cause: Minor leak in water system | Check push fit joints | DIY Safe |
N/A | Appliance lights but goes out immediately the FSD override is released Possible Cause: Flame supervision device (FSD) is not functioning correctly | Refer to dealer | Professional Intervention Required |
N/A | No power to one or more 12V appliances Possible Cause: Circuit fuse blown | Find fault and replace fuse with same rating | DIY Safe |
N/A | Fridge does not operate on 12V when engine is running Possible Cause: Fault on fridge relay | Refer to dealer | Professional Intervention Required |
N/A | Slow drainage from sink/shower tray Possible Cause: Blocked breathers in waste tank | Drop tank and clear breathers | DIY Safe |
N/A | No 230 volt output from PSU Possible Cause: Other fault | Contact your Dealer | Professional Intervention Required |
N/A | Control Panel contrast poor Possible Cause: Observe control panel handling instructions. | Remove control panel as above but do not unplug. Carefully adjust contrast preset (small adjuster) on back of control panel using jewellers screwdriver | DIY Safe |
N/A | Appliance will not light (LPG) Possible Cause: No gas | Check isolation valve is open | DIY Safe |
N/A | Control Panel has no display | Check batteries, turn EC328PSU charger switch on, and ensure mains supply is connected. Check control panel connecting lead at EC328PSU and behind Control Panel. Contact your Dealer | DIY Check / Tech Fallback |
N/A | Floating flame Possible Cause: Lack of secondary air | Check all vents are clear (air inlet to vehicle) If in an Oven Check the flue way is clear | DIY Safe |
N/A | Gas supply cut off due to an accident or collision Possible Cause: Truma Mono Control Crash Sensor triggered by an accident with a deceleration of between 3g and 4g acting directly on the triggering element | Press the green button on the Mono Control inwards and hold it for approximately 10 seconds. It may be necessary to press with reasonable force, using a pen or pencil. | DIY Safe |
N/A | Odour (LPG) Possible Cause: Gas leak | Turn off the gas at the cylinder and do not use the gas system until the problem has been rectified. Open all doors and windows to disperse any gas escape. In the event of a leaking cylinder, contact the site warden and/or the local gas supplier. | Professional Intervention Required |
N/A | Orange flame (LPG) Possible Cause: Particles of dust or dirt in the mixing tube being carried through the burner ports | Reduce the amount of dust in air | DIY Safe |
N/A | Waste water level rises to 100% with water pump power switch turned ON Possible Cause: Waste water tank is full (100%) | A warning beep will be heard and the LCD display will flash. To cancel the warning, press the select button. The warning will not be repeated unless the water pump power switch is turned off and on again. | DIY Safe |
N/A | Water level drops below 25% with water pump power switch turned ON Possible Cause: Fresh water tank level is low (less than 25%) | A warning beep will be heard and the LCD display will flash. To cancel the warning, press the select button. The warning will not be repeated unless the water pump power switch is turned off and on again. | DIY Safe |
N/A | Yellow flame (LPG) Possible Cause: Lack of primary air, please note yellow tipping to the flame is normal | Refer to dealer | Professional Intervention Required |
N/A | Buzzer sounding behind the dashboard when the ignition is switched on Possible Cause: Rear electrical entrance step left extended | Fully retract the step. | DIY Safe |
N/A | Reverse Polarity light is illuminated on PSU when using a generator Possible Cause: Generator being used | The Reverse Polarity warning light is on when using my Generator. This is a normal side effect when using some types of generator. Instead of connecting the neutral conductor to earth, some generators centre tap the earth connection making both neutral and live conductors 110v above earth. This 110v difference causes the neon polarity indicator to illuminate. In most cases it is still safe to use the generator, but please consult the generator handbook for further information. | DIY Safe |
Frequently Asked Questions
Q: Where can I find the tyre pressures for my Auto-Sleepers campervan?
For all automotive matters you should refer to the base vehicle instruction manual. The tyre pressures for Ford can be found on a label located on the door pillar on the left hand side of the body.
Q: Where is the vehicle production number or chassis number located?
The vehicle production number can be found on a label in the glove box and on the bottom edge of the Type Approval plate fitted to the driver or passenger door pillar. The 17-digit VIN (chassis number) is visible in the bottom left-hand corner of the windscreen and on the type approval plate attached to the cab door pillar.
Q: What should I do when the low battery level alarm sounds?
It is advised the vehicle is plugged into a 230v supply to recharge the leisure battery.
Q: What should I do if the low battery alert is triggered on a lithium battery?
The battery must be recharged, either by using the on board battery charger, or running the engine.
Q: How do I use the external BBQ point?
Connect the adaptor provided onto the outlet pipe of your barbeque. Then push the adaptor into the barbeque fitting on the vehicle and turn the red tap into the 'on' position. After use, turn the tap off and release the adaptor from the fitting.