Why is there cold supply air from my villavent VR-400 EV/B Fan?
- NNatasha LittleJul 28, 2025
If you are experiencing cold supply air, check the set supply air temperature on the control panel. Also, check if the fire protection thermostat has tripped; if so, press the "I" button on the unit. Inspect the exhaust air filter for dirt and ensure the exchanger is rotating.


