Campervan models: Symbol, Symbol Plus, Warwick Duo, Fairford, Fairford Plus, Kemerton XL, Kingham, Warwick XL, M Star
Auto-Sleepers Gas Supply System
(Campervan, 2023 Model Year)
View official manual on manufacturer's site ↗Also Fitted To This Caravan
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | Appliance will not light | No gas | Check isolation tap is open | DIY Safe |
N/A | Appliance will not light | Low battery (auto ignition) | Charge battery | DIY Safe |
N/A | The appliance lights but goes straight out again as soon as the FSD override is released. | The flame supervision device (FSD) isn't working correctly. | Refer to dealer | Professional Intervention Required |
N/A | Odour | Gas leak | Close the gas isolation tap and leave the system switched off until it's fixed. Ventilate by opening doors and windows to clear any gas that's got out, and report a leaking cylinder to the site warden and/or your local gas supplier. | Professional Intervention Required |
N/A | Yellow flame | There isn't enough primary air reaching the burner - note that a little yellow tipping on the flame is normal and not a fault. | Refer to dealer | Professional Intervention Required |
N/A | Orange flame | Dust or dirt has collected in the mixing tube and is reaching the burner ports. | Reduce the level of dust in the surrounding air. | DIY Safe |
N/A | Orange flame | Burner ports partically blocked | Refer to dealer | Professional Intervention Required |
N/A | Floating flame | Lack of secondary air | Make sure every vent is clear, including the vehicle's air inlet. | DIY Safe |
N/A | Floating flame | If in an oven | Make sure the flue way isn't blocked. | DIY Safe |
Frequently Asked Questions
Q: How do I reset the Truma Mono Control Crash Sensor if it triggers?
Press the green reset button on the Mono Control firmly inward and keep it held for roughly 10 seconds - a pen or pencil may help if you can't press hard enough with just a finger.