Troubleshooting Lack Of Difference Between Fan Speeds With An RV Air Conditioner System

Question

Question:

How much increase/decrease of air flow does the three speed switch cause? The original switch provides almost no perceptible difference? Thanks

asked by: Tom K

0

Expert Reply:

Hey Tom,

There should be a noticeable difference between the Hi/Med/Low fan settings for your system. Do you have ducts or does your system just blow straight down through the vents in the air distribution box? Do you have a Furrion AC system? If the rooftop unit isn't increasing in speed as you turn up the fan speed control then that could indicate an issue either with the rooftop unit or the controller.

expert reply by: Kevin C

0

Kevin

8/20/2024

Kevin thanks for the response. This is a brand new Furrion HE that just blows all the air straight down. We really want to be able to direct the air. E-trailer has always provide good products at a fair price so I am going to order one and we will ferret out the fan issue.

Kevin C.

8/21/2024

@Kevin If you have ducts in the space between the air distribution box and rooftop unit and the vents on the air distribution box are open it would split the air flow and could seem like you're not getting a real difference from the different fan speeds. You can increase the air flow pressure by closing certain vents either on the air distribution box or duct vent. If that's not an option then going with a different air distribution box that has closeable vents or switching to a higher BTU rooftop unit can help, but obviously wouldn't be super cost friendly. If you feel the fan speeds are really out of the norm then I would close all duct vents and force all air through the air distribution box to check if there's a noticeable difference. If not, that's when I'd look at the power to ensure the system's getting enough voltage to properly operate. If it is and the fan speeds still just don't seem right that's when I'd get Furrion involved and see if they can warranty out a replacement.

Answer 1

Hello Russ, I'm sorry, but you cannot use the Replacement Air Distribution Box for Furrion Chill RV Air Conditioners - Built-in Thermostat - White #FACT11MA-PS with the FACR13SA-PS / FACR13SA-BL units, as it is only compatible with the Furrion…

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Answer 2

Hey Matt, Furrion typically has 4 wires running to their thermostats and the Chill Cube Thermostat #LC74DX is no exception. The harness you see with the thermostat would plug into the Chill Cube's controller and has 4 wires to extra wire to to…

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Answer 3

The picture you attached is not of the Replacement Air Distribution Box w/ Built-in Thermostat for Furrion Chill RV Air Conditioner #FACT11MA-PS actually installed so that is why you can see the wiring. I attached a picture that shows a wiring…

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Answer 4

The Replacement Air Distribution Box w/ LEDs for Furrion Chill RV Air Conditioner - Electric Control #FACT12LA-PS you were looking at requires an electronic thermostat, however, you can go with the Replacement Air Distribution Box w/ Built-in…

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 11

Hey Jon; I was actually just talking to Furrion about heat options for the Chill Cube yesterday (1/21/2025). At this time, the only way to have heat with this unit is through a furnace on a ducted setup. The Furrion Chill Cube RV AC w/ Air…

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Answer 12

Hey Neil. The 18,000 Btu Furrion Chill Cube RV Air Conditioner item #LC34DX fits a 14-1/4" x 14-1/4" cutout which is pretty standard on RV's. If you meant to write Dometic instead of domestic then yes it'll fit in your existing…

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Troubleshooting Lack Of Difference Between Fan Speeds With An RV Air Conditioner System

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