Covers: Acadia, Laser, VIP
Acadia models: 460, 545, 575, 660 Xtra
VIP models: 565, 575
Laser models: 480 Xtra, 545 Xtra, 575 Xtra, 845 Xtra
Coachman Air Conditioning
(2026 Model Year)
View official manual on manufacturer's site ↗Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | Aventa air conditioning unit appliance not cooling | Either a thawing cycle is running, or the remote control's temperature setting has been reached or set too high. | Wait for thawing process to complete or adjust remote control temperature setting. | DIY Safe |
N/A | Aventa air conditioning unit device not heating | Either a thawing cycle is in progress (with the outside temperature between 4°C and 7°C), or the outside temperature has dropped below 4°C. | Wait for thawing process or note that device does not operate below 4ºC outside temperature. | DIY Safe |
N/A | The Aventa air conditioning unit isn't cooling or heating properly, or not at all. | Panels dirty or external air routes soiled/blocked. | Clean panels and clear external air routes. | DIY Safe |
N/A | Water dripping out of Aventa air conditioning unit air distributor | Could be moisture on the underside, a blocked condensation trap on the external unit, a broken seal between the appliance and the roof, or the vehicle sitting at too steep an angle. | Shut all the windows and doors and set the fan to a high level. Clear out the condensation trap, check the seal, or correct the vehicle's angle as needed. | DIY Safe |
N/A | Aventa remote control not working or appliance not reacting | Batteries flat, remote out of range, or remote not paired. | Check and replace batteries in the remote control if necessary. Move into range or pair remote with air conditioning system. | DIY Safe |
Red LED flashing | Aventa air distributor red LED flashing | Error in the control system. | Switch off the air conditioning, hold on for a little while, then switch it on once more. If the red LED's still glowing, contact Truma Service. | DIY Check / Tech Fallback |
White LED flashing | Aventa air distributor white LED flashing | Bluetooth pairing not possible. | Remove any extra Truma apps you don't need, then pair the device again. | DIY Safe |
Frequently Asked Questions
Q: How do I operate the Aventa air conditioning unit?
The Aventa 2.G system switches on using the on/off button, either on the air distributor itself or the Bluetooth remote control. Once it's running, use the mode button to pick between automatic, heating, cooling, circulation and dehumidification, and the navigation buttons to set fan speed and target temperature. Keep doors and windows shut while it's operating, and give the caravan a good airing beforehand so any built-up warm air is cleared first.
Don't run the unit while parked on a slope steeper than 8% (roughly 4.5 degrees) - on a slope that steep the compressor can run dry and wear out prematurely.