Fantech ATMO Series - User Manual

Questions and Answers

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Katherine CoxAug 16, 2025
How to stop condensation on windows with Fantech Ventilation Hood?
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  Sierra BeckerAug 16, 2025
  If you're experiencing persistent condensation on your windows while using your Fantech Ventilation Hood, here's what you can do: * **Dehumidistat Adjustment:** Reduce the desired humidity level on your dehumidistat control and combine this with continuous exchange mode. * **FAA Balance:** Have a contractor balance the FAA (Fresh Air Appliance). * **Air Circulation:** Improve air circulation by opening curtains or blinds near the windows.
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Jeffery WilliamsAug 25, 2025
Why does the supply air feel cold from my Fantech ATMO?
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  Lisa CrawfordAug 25, 2025
  If the supply air from your Fantech Ventilation Hood feels cold, here are a couple of reasons why: * **Grille Location:** The location of the supply grilles may be causing drafts. Consider relocating the grilles higher on the walls or under the baseboards. You might also install ceiling-mounted diffusers or grilles to avoid directing air directly onto occupants. Reducing the FAA supply speed can also help. A small duct heater (1kW) could be used to temper the supply air. Ensure furniture or closed doors aren't restricting air movement. * **Outdoor Temperature:** When the outdoor temperature is extremely cold, and if the supply air is ducted into the furnace return, the furnace fan may need to run continuously to distribute ventilation air comfortably.
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Ryan GloverAug 28, 2025
What causes Fantech ATMO Ventilation Hood and/or ducts frosting up?
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  Erika MorseAug 28, 2025
  If your Fantech Ventilation Hood and/or ducts are frosting up, it could be due to: * **Improperly Balanced Airflows:** Have an HVAC contractor balance the FAA airflows. * **Defrost System Malfunction:** Note that minimal frost build-up is expected on the core before the unit initiates defrost cycle functions.
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ericrobinsonSep 1, 2025
How to fix condensation or ice build up in insulated duct of Fantech ATMO Ventilation Hood?
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  ylarsonSep 1, 2025
  If you notice condensation or ice building up in the insulated duct leading outside from your Fantech Ventilation Hood, it could be due to: * **Incomplete Vapor Barrier:** Ensure that all joints around the insulated duct are taped and sealed to create a complete vapor barrier. * **Damage to Duct Covering:** Inspect the outer duct covering for any holes or tears. Tape any damage and ensure the vapor barrier is completely sealed.
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Zachary BellSep 4, 2025
How to fix too dry air from Fantech ATMO?
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  michael19Sep 4, 2025
  If the air from your Fantech Ventilation Hood is too dry, it might be because the dehumidistat control is set too low. To resolve this, increase the desired level of humidity or change the ventilation mode from continuous to standby.
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Sherry JohnsonSep 8, 2025
What to do if no power is being transmitted to the control board of my Fantech ATMO Ventilation Hood?
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  Maria MorenoSep 8, 2025
  Make sure the unit is plugged in. If it is, the transformer may need replacing.
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Stephanie DuncanNov 12, 2025
Why is the air too humid with my Fantech ATMO?
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  Rachel SmithNov 12, 2025
  If you notice that the air is too humid when using your Fantech Ventilation Hood, there are several potential causes and solutions: * **Dehumidistat Setting:** The dehumidistat control might be set too high. Try reducing the desired level of humidity and combining this with the use of continuous exchange mode. * **Temperature Changes:** A sudden change in outside temperature can affect humidity levels. Waiting until the outside temperature stabilizes, particularly in winter, and using heating can help improve the situation. * **Wood Storage:** Storing too much wood indoors for heating can increase humidity. Store most of your wood outside, as even dried wood contains a significant amount of water. * **Dryer Vent:** Ensure that your dryer vent is exhausting outside to prevent exces...
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Michael TownsendNov 20, 2025
What to do if Fantech ATMO has poor air flows?
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  montgomeryjeffreyNov 20, 2025
  If your Fantech Ventilation Hood has poor air flows, consider the following: 1. **Exterior Hoods/Vents:** Clean any debris from the exterior hoods or vents, especially if they have a 1/4" (6mm) mesh. 2. **Filters:** Remove and clean the filters. 3. **Core:** Remove and clean any obstructions in the core. 4. **Indoor Grilles:** Check and open any closed or blocked indoor grilles. 5. **Power Supply:** Have an electrician check the supply voltage to ensure it's adequate. 6. **Ductwork:** Check the duct installation for any restrictions to airflow. 7. **Speed Control:** Increase the speed of the FAA (i.e., change the unit control from REDUCED to NORMAL speed). 8. **FAA Airflow Balance:** Have a contractor balance the FAA airflow. 9. **Ducting Connection:** If ducting has fallen down ...