Dometic FreshLight 2200
Official technical documentation and workshop diagnostics for FreshLight 2200.
Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
N/A | Roof air conditioner constantly switches itself off. Possible Cause: Icing sensor has tripped. Outer temperature is too low or all air nozzles are closed. | Check ambient temperature and ensure air nozzles are open. | DIY Safe |
N/A | No cooling capacity Possible Cause: The roof air conditioner is not set to cooling. | Set the roof air conditioner to cooling. | DIY Safe |
N/A | No cooling capacity Possible Cause: The ambient temperature is above 52 °C. | Ensure ambient temperature is within the designed range of up to 52 °C. | DIY Safe |
N/A | No cooling capacity Possible Cause: The temperature set is higher than the room temperature. | Select a lower temperature. | DIY Safe |
N/A | No cooling capacity Possible Cause: The ambient temperature is below 16 °C. | Ensure ambient temperature is above 16 °C. | DIY Safe |
N/A | No cooling capacity Possible Cause: One of the temperature sensors is defective, the vaporiser fan is damaged, or the condenser fan is damaged. | Contact an authorised service agent. | Professional Intervention Required |
N/A | No heating capacity Possible Cause: The ambient temperature is above 30 °C. | Only use the heating function of the roof air conditioner at temperatures below 30 °C. | DIY Safe |
N/A | No heating capacity Possible Cause: The ambient temperature is below 2 °C. | Ensure ambient temperature is above 2 °C. | DIY Safe |
N/A | No heating capacity Possible Cause: The temperature set is above 30 °C. | Select a lower temperature. | DIY Safe |
N/A | No heating capacity Possible Cause: The roof air conditioner is not set to heating. | Set the roof air conditioning to heating. | DIY Safe |
N/A | No heating capacity Possible Cause: One of the temperature sensors is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Low air output Possible Cause: The air intake section is clogged up. | Remove any leaves and other dirt from the ventilation grilles of the roof air conditioner. | DIY Safe |
N/A | Low air output Possible Cause: The blower is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Water enters the vehicle Possible Cause: The condensation water drainage openings are clogged up. | Clean the drainage openings for condensation water. | DIY Safe |
N/A | Water enters the vehicle Possible Cause: The seals are damaged. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Roof air conditioner does not switch on. Possible Cause: No supply voltage (230 V) connected. | Check the power supply. | DIY Safe |
N/A | Roof air conditioner does not switch on. Possible Cause: The voltage is too low (under 200 V) or the voltage converter is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Roof air conditioner does not switch on. Possible Cause: One of the temperature sensors is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Roof air conditioner does not switch on. Possible Cause: The electrical fuse of the power supply is too low. | Check the electrical fuse of the power supply. | DIY Safe |
N/A | Roof air conditioner does not switch off. Possible Cause: One of the temperature sensors is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Roof air conditioner does not switch off. Possible Cause: The electrical fuse of the power supply is too low. | Check the electrical fuse of the power supply. | DIY Safe |
N/A | Roof air conditioner constantly switches itself off. Possible Cause: Icing sensor has tripped because outer temperature is too low or all air nozzles are closed. | Ensure outer temperature is within operating range and open air nozzles. | DIY Safe |
N/A | No cooling capacity Possible Cause: The roof air conditioner is not set to cooling. | Set the roof air conditioner to cooling. | DIY Safe |
N/A | No cooling capacity Possible Cause: The ambient temperature is above 52 °C. | Ensure ambient temperature is within the designed limit of up to 52 °C. | DIY Safe |
N/A | No cooling capacity Possible Cause: The temperature set is higher than the room temperature. | Select a lower temperature. | DIY Safe |
N/A | No cooling capacity Possible Cause: The ambient temperature is below 16 °C. | Ensure ambient temperature is above 16 °C for cooling. | DIY Safe |
N/A | No cooling capacity Possible Cause: One of the temperature sensors is defective, or the vaporiser/condenser fan is damaged. | Contact an authorised workshop. | Professional Intervention Required |
N/A | No heating capacity Possible Cause: The ambient temperature is above 30 °C. | Only use the heating function of the roof air conditioner at temperatures below 30 °C. | DIY Safe |
N/A | No heating capacity Possible Cause: The ambient temperature is below 2 °C. | Ensure ambient temperature is above 2 °C for heating. | DIY Safe |
N/A | No heating capacity Possible Cause: The temperature set is above 30 °C. | Select a lower temperature. | DIY Safe |
N/A | No heating capacity Possible Cause: The roof air conditioner is not set to heating. | Set the roof air conditioning to heating. | DIY Safe |
N/A | No heating capacity Possible Cause: One of the temperature sensors is defective. | Contact an authorised workshop. | Professional Intervention Required |
N/A | Low air output Possible Cause: The air intake section is clogged up. | Remove any leaves and other dirt from the ventilation grilles of the roof air conditioner. | DIY Safe |
N/A | Low air output Possible Cause: The blower is defective. | Contact an authorised workshop. | Professional Intervention Required |
N/A | Water enters the vehicle Possible Cause: The condensation water drainage openings are clogged up. | Clean the drainage openings for condensation water. | DIY Safe |
N/A | Water enters the vehicle Possible Cause: The seals are damaged. | Contact an authorised workshop. | Professional Intervention Required |
N/A | Roof air conditioner does not switch on. Possible Cause: No supply voltage (230 V) connected, voltage is too low (under 200 V), voltage converter is defective, temperature sensor is defective, or electrical fuse of the power supply is too low. | Check the power supply and electrical fuse. If components are defective, contact an authorised workshop. | DIY Check / Tech Fallback |
N/A | Roof air conditioner does not switch off. Possible Cause: One of the temperature sensors is defective or the electrical fuse of the power supply is too low. | Check the electrical fuse of the power supply. If the temperature sensor is defective, contact an authorised workshop. | DIY Check / Tech Fallback |
Frequently Asked Questions
Q: MY ROOFTOP UNIT HAS THE ELECTRIC HEAT STRIP OPTION (NON-HEAT PUMP ELECTRIC HEAT OPTION), BUT WHEN IT GETS COLDER OUTSIDE IT DOESN’T SEEM TO MAINTAIN THE TEMPERATURE. WHAT SHOULD I DO?
Electric heat strips are designed to take the chill out of the air inside your motorhome, but they are not intended to be the primary heat source for cold weather camping. When outdoor temperatures drop significantly, the heat loss of the motorhome typically exceeds the capacity of a standard electric heat strip.
Q: WHAT ARE THE BENEFITS OF A MOTORHOME AIR CONDITIONER?
An motorhome air conditioner helps maintain a comfortable indoor climate, reduces humidity levels inside the vehicle, and filters out dust and pollen, creating a more pleasant and healthy living space while traveling or camping.
Q: WHAT IS THE IDEAL AIR CONDITIONING TEMPERATURE?
The ideal indoor air conditioning temperature for an motorhome is generally between 70°F and 72°F (21°C to 22°C), balancing comfort and energy efficiency.
Q: WHAT MOTORHOME AC DO I NEED IN WARM LOCATIONS?
For extremely warm locations or larger motorhomes, a high-capacity rooftop air conditioner (such as a 13,500 BTU or 15,000 BTU unit) or a dual AC setup is recommended to adequately cool the space.
Q: HOW DOES MOTORHOME AIR CONDITIONING WORK?
Motorhome air conditioning works on the same principle as a standard home AC unit. It uses a refrigeration cycle involving a compressor, condenser, expansion valve, and evaporator to absorb heat from the interior air and exhaust it outside, while blowing cooled air back into the motorhome.
Q: HOW TO RUN MY MOTORHOME AC WITH A GENERATOR?
To run your motorhome air conditioner with a generator, ensure the generator has sufficient running and starting wattage (surge wattage) to handle the compressor's startup load—typically a minimum of 2,000 to 3,000 watts depending on the AC unit size. Always start the generator and let it stabilize before turning on the air conditioner.
Q: HOW TO RUN MY MOTORHOME AIR CONDITIONER ON THE CAMPSITE?
To run your motorhome air conditioner at a campsite, connect your motorhome to an appropriate power pedestal (usually 30-amp or 50-amp service) matching your motorhomes electrical system requirements. Ensure other high-draw appliances are managed to avoid tripping the campsite breaker.