Fantech VHR Series - User Manual

Questions and Answers

A
Adrian RyanAug 15, 2025
How to improve poor air flow in my Fantech VHR?
- L
  Lindsay LiAug 15, 2025
  Poor airflow in your Fantech Fan can stem from several issues. Start by checking and cleaning the exterior hoods or vents if the 1/4" (6mm) mesh is plugged. Remove and clean the filter and core. Ensure indoor grilles are open and unblocked. Have an electrician check the power supply voltage. Inspect duct installation for restrictions. Increase the fan speed, and if these steps don't resolve the issue, have a contractor balance the HRV airflow or reconnect any disconnected ducting.
T
Timothy LoganAug 21, 2025
What to do if there is persistent condensation on window with Fantech VHR Fan?
- J
  Jennifer GatesAug 22, 2025
  Persistent condensation on windows when using your Fantech Fan might be due to a few reasons. Try reducing the desired level of humidity by adjusting the dehumidistat control and using continuous exchange mode. If that doesn't work, have a contractor balance the HRV. Also, make sure to open curtains or blinds to improve air circulation near the windows.
B
Benjamin YoungAug 26, 2025
Why does the supply air feel cold from my Fantech Fan?
- H
  Heather WardAug 26, 2025
  If the supply air from your Fantech Fan feels cold, it could be due to the location of the supply grilles, which might irritate the occupant. Consider relocating the grilles higher on the walls or under the baseboards, or install ceiling-mounted diffusers or grilles to avoid directly spilling the supply air on the occupant. You could also turn down the HRV supply speed or use a small duct heater (1kW) to temper the supply air. Additionally, ensure that furniture or closed doors aren't restricting air movement in the home. If the outdoor temperature is extremely cold, and the supply air is ducted into the furnace return, the furnace fan may need to run continuously to distribute ventilation air comfortably.
T
Taylor MillerAug 28, 2025
How to fix air that is too dry with Fantech VHR Fan?
- C
  craighamiltonAug 28, 2025
  If the air is too dry when using your Fantech Fan, it might be because the dehumidistat control is set too low. Try increasing the desired level of humidity and change the ventilation mode from continuous mode to standby.
C
carl18Aug 31, 2025
What causes HRV and/or ducts frosting up in Fantech VHR Fan?
- J
  Jeffrey McbrideSep 1, 2025
  If your Fantech Fan's HRV and/or ducts are frosting up, have an HVAC contractor balance the HRV airflows. Note that minimal frost build-up is expected on cores before the unit initiates defrost cycle functions.
K
Katherine DavisSep 4, 2025
How to prevent condensation or ice build up in insulated duct to the outside of Fantech Fan?
- J
  jessicarobinsonSep 4, 2025
  If you notice condensation or ice building up in the insulated duct to the outside of your Fantech Fan, make sure to tape and seal all joints to ensure a complete vapor barrier around the insulated duct. Also, tape any holes or tears in the outer duct covering and ensure the vapor barrier is completely sealed.
S
samuelsosaSep 7, 2025
How to fix HRV out of balance in Fantech VHR Fan?
- C
  Catherine HamptonSep 7, 2025
  To address an out-of-balance HRV in your Fantech Fan, have a contractor balance HRV airfolws.
J
Joel HerreraSep 12, 2025
What does it mean if the LED is flashing on my Fantech VHR Fan?
- K
  Kevin HarrisSep 12, 2025
  If the LED on your Fantech Fan is flashing, make sure the unit is plugged in. If it is, the transformer may need replacing.
J
James GreenNov 17, 2025
Why is the air too humid when using my Fantech VHR?
- S
  Shelley TaylorNov 17, 2025
  If the air is too humid when using your Fantech Fan, there are several potential causes and solutions. First, reduce the desired level of humidity if the dehumidistat control is set too high, and combine this with continuous exchange mode. If there's been a sudden change in temperature, wait until the outside temperature stabilizes, especially in winter; heating can also help. Ensure you're not storing too much wood inside, as even dried wood contains a significant amount of water—store most of it outside. Check that your dryer vent is exhausting outside, and improve air circulation near windows by opening curtains or blinds. If you have a well-sealed basement door, open it or install a grill on it. Finally, a failed damper system may be stuck in recirculation mode; check the defrost dampe...