Dometic CoolFun
Official technical documentation and workshop diagnostics for CoolFun.
View official manual on manufacturer's site ↗Technical Specifications
ElectricalInput voltage: 12 V DC; Current consumption: 4 A - 5 A; Power input: 48 W at 12 V DC cooling operation, 42 W at 12 V DC heating operation; Plug fuse: 5 A; Vehicle fuse: 15 A (typical); Battery monitor switch-on voltage: 13.1 V ±0.2 V; Battery monitor switch-off voltage: 11.7 V ±0.2 V
Gas Or PressureNot applicable (Peltier thermoelectric cooling system)
Capacities DimensionsGross capacity: 45 litres; Weight: approx. 8.0 kg; Cooling capacity: max. 20 °C under ambient temperature (thermostatic switch-off at approx. +5 °C); Heating capacity: approx. 65 °C inside temperature (fixed point thermostat)
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | Coolbox does not function and external fan impeller does not rotate | No voltage present at vehicle cigarette lighter socket, dirty socket causing poor contact, blown plug fuse (5 A), or blown vehicle fuse (15 A) | Turn on vehicle ignition switch. Clean socket using a non-metallic brush and solvent to ensure the center contact pin is clean. Replace the 5 A fuse in the cigarette lighter plug or the vehicle's accessory fuse. | DIY Safe |
N/A | Coolbox does not cool satisfactorily and external fan impeller does not rotate | Defective external ventilator motor | Repair can only be executed by an authorized customer service. | Professional Intervention Required |
N/A | Coolbox does not cool satisfactorily and external fan impeller rotates | Defective internal ventilator motor or defective Peltier element | Repair can only be executed by an authorized customer service. | Professional Intervention Required |