Dometic FJX3573 - User Manual

Questions and Answers

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Connie CollinsAug 19, 2025
Why is my Dometic FJX3573 not maintaining the desired temperature?
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  Patrick EllisSep 12, 2025
  Your Dometic Air Conditioner might struggle to maintain the desired temperature if the RV is gaining heat due to high outdoor temperatures or humidity. To mitigate this, park the RV in a shaded area. Additionally, use window shades, blinds, or curtains, keep windows and doors closed or minimize their use, and avoid using heat-producing appliances inside the RV. You can also operate the product in the High Fan/Cooling mode or start the product before the outside temperature increases.
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Reginald RiddleAug 21, 2025
How to fix a Dometic Air Conditioner that won't turn on?
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  Jasmine HolmesAug 21, 2025
  If your Dometic Air Conditioner isn't working, check if the circuit breaker has been activated and reset it if necessary. Also, inspect the fuse and replace it if it has blown.
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Christopher ShawAug 23, 2025
What to do if my Dometic Air Conditioner doesn't cool enough?
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  Robert AndersonAug 23, 2025
  If your Dometic Air Conditioner isn't maintaining the desired temperature, consider that the RV's heat gain could be affected by high outdoor temperatures or humidity. Try parking the RV in a shaded area. Additionally, use window shades, blinds, or curtains, keep windows and doors closed or minimize their use, and avoid using heat-producing appliances inside the RV. You can also operate the product in the Turbo Fan/Cooling mode or start the product before the outside temperature increases.
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bennettritaAug 26, 2025
What to do if frost forms on the evaporator coil of my Dometic FJX3573 Air Conditioner?
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  Kathryn WilkinsAug 26, 2025
  If you notice frost forming on the evaporator coil of your Dometic Air Conditioner, it could be due to very cold output at a very low air speed, or the outside temperature may be relatively low. First, inspect and clean the filter. Then, open the air vents and remove any obstructions. Confirm that a minimum of two distribution vents, or the quick cool vent and one vent, are open. Adjust the thermostat control knob to a warmer setting (counterclockwise). You can also operate the product on any Fan Only setting until the coil is free of frost.
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Chloe NortonAug 27, 2025
How to prevent condensation forming on ceilings from Dometic FJX3573 Air Conditioner?
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  Jamie GarciaAug 28, 2025
  To reduce condensation forming on ceilings, windows, or other surfaces when using your Dometic Air Conditioner, keep doors and windows closed when the unit is in operation. This minimizes the amount of water vapor in the air that can condense on cooler surfaces.
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christopherstewartAug 30, 2025
Why does frost form on the evaporator coil of my Dometic FJX3573?
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  Amy MaxwellAug 30, 2025
  Frost can form on the evaporator coil of your Dometic Air Conditioner if the product is producing very cold output at a very low air speed. Inspect and clean the filter. Also, open the air vents and remove any obstructions. If the outside temperature is relatively low, adjust the thermostat control knob to a warmer setting (counterclockwise). You can also operate the product on any Fan Only setting until the coil is free of frost.
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Angelica LittleAug 31, 2025
What to do if my Dometic FJX3573 Air Conditioner does not operate well when connected to the motor generator?
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  James MartinezSep 1, 2025
  If your Dometic Air Conditioner isn't operating well and the RV is connected to the motor generator, confirm the motor generator is running and producing power. Also, confirm the fuse or circuit breaker is open and ensure the fuse is not blown, or circuit breaker is on and not activated.
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Gary WardSep 3, 2025
How to reduce condensation forming with my Dometic Air Conditioner?
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  Eric HeathSep 3, 2025
  To reduce condensation forming on ceilings, windows, or other surfaces when using your Dometic Air Conditioner, keep doors and windows closed when the unit is in operation. This helps to reduce the amount of water vapor in the air that can condense on cooler surfaces.
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Anna ParksSep 5, 2025
What to do if Dometic FJX3573 is not working when connected to land line?
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  Lauren WrightSep 5, 2025
  If your Dometic Air Conditioner isn't working or is operating poorly when connected to a land line, first confirm that the land line is plugged into the power supply and that it is properly-sized for the product's power load.
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Craig WelchSep 7, 2025
What to do if Dometic FJX3573 is not working when connected to generator?
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  George DudleySep 7, 2025
  If your Dometic Air Conditioner is not working, or working poorly, when connected to the motor generator, you should confirm the motor generator is running and producing power. Also, confirm the fuse or circuit breaker is open, ensuring the fuse is not blown, or the circuit breaker is on and not activated.