Dometic FanTastic
Official technical documentation and workshop diagnostics for Dometic FanTastic.
Technical Specifications
ElectricalInput Voltage: 12 V DC; Maximum Power Input: 7.6 W (ACC3100DWHA) / 16.5 W (ACC3100DWHWLDA); Maximum Power Consumption: 0.18 kWh/24h (15.2 Ah/24h) up to 0.40 kWh/24h (33 Ah/24h); Minimum Power Consumption: 0.06 kWh/24h (4.9 Ah/24h); External Fuse: 3 A; Frequency: 2.4 GHz; Maximum Radio Frequency Power: 19.14 dBm
Gas Or PressureNot applicable (Electric-powered ventilation system)
Capacities DimensionsCeiling vent opening: 150 cm²; Dimension roof top unit (W x L x H): 542.6 × 553 × 127 mm; Dimension air distribution unit (W x L x H): 517.6 × 517.6 × 46 mm; Roof thickness: 23 … 60 mm; Ventilation rate: 30 … 50 m³/h; Heat recovery efficiency: 72 … 87 %; Weight: 7 kg (ACC3100DWHA) / 7.14 kg (ACC3100DWHWLDA)
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
N/A | The ventilation system does not switch on Possible Cause: No power supply connected or voltage is out of range | Check the power supply. Charge the vehicle battery if necessary. Contact an authorized service agent if voltage is out of range. | DIY Check / Tech Fallback |
N/A | The display does not respond Possible Cause: The display is dirty, defective, blocked, or not connected correctly | Clean the display with a slightly damp cloth. Reset the ventilation system. Contact an authorized service agent if defective or incorrectly connected. | DIY Check / Tech Fallback |
N/A | The heat exchanger does no longer rotate Possible Cause: The heat exchanger is blocked, clogged, grinding, or connection cable/plug (C2) issue | Check whether the heat exchanger is clogged or grinding. Check the plug to the mainboard (C2) and connection cable for kinks. Switch the ventilation system off and on again to reactivate motor overload protection. Contact a service agent if it fails to rotate. | DIY Check / Tech Fallback |
N/A | The ventilation system does not work Possible Cause: Grilles covered, incorrect connection, defective part, or empty battery | Remove leaves and obstacles from air/climate grilles. Charge the connected battery. Contact an authorized service agent for defective parts. | DIY Check / Tech Fallback |
N/A | Water enters the vehicle Possible Cause: The roof seal is damaged | Contact an authorized service agent to replace or repair the seal. | Professional Intervention Required |
N/A | The LED light strip does not work Possible Cause: The LED light strip is defective | Contact an authorized service agent. | Professional Intervention Required |
N/A | VOC sensor error (Indicator and button flash) Possible Cause: VOC sensor failure | Contact an authorized service agent. | Professional Intervention Required |
N/A | DP sensor (Performance Booster) communication or data error Possible Cause: Bluetooth communication loss, blocked/kinked hose, or low booster battery | Check Bluetooth communication, check if the hose is blocked or kinked, replace the battery or check power supply of the Performance Booster. Contact an authorized service agent. | DIY Check / Tech Fallback |
N/A | Fan error or Motor RPM mismatch Possible Cause: Tachometer read while inactive/off (wind-driven), motor tachometer reading missing when active, or heat exchanger blockage/grinding | Reset the error if wind or manual turning caused it while inactive. Check blockage or grinding of the heat exchanger when active. Contact an authorized service agent. | DIY Check / Tech Fallback |
N/A | Backup battery low / Battery overheating / Battery expired (solar panel version only) Possible Cause: Insufficient solar power due to weather, communication error with battery IC, very high outside temperature, or expired battery | Use the 12V vehicle supply if solar power is low. Place the vehicle in the shade if overheating. Contact an authorized service agent for battery replacement, IC errors, or expired batteries. | DIY Check / Tech Fallback |