Product Owners Manual
TrueFRESH™ Ventilation System 69-2481EF—01 9
Troubleshooting
Problem Recommended Troubleshooting Steps
ERV/HRV unit not running 1. Verify polarization of electrical receptacle.
2. Verify breaker in electrical box.
3. Verify that the external control or mode selector are activated to
call for ventilation.
4. Unplug the unit and verify that the external control(s) are wired
correctly to the wiring terminal block.
Air is too dry 1. Increase humidity level on the dehumidistat.
2. Switch ventilation mode from continuous to intermittent.
3. Install a humidier.
Air too humid 1. Reduce the humidity level on the controller.
2. Make sure that the clothes dryer is vented to the outdoors.
3. Wait for outside temperature to change. For example, it can be
very humid at times in the summer.
4. Verify balancing of the ERV/HRV unit (see Balancing Steps on
page 7).
LED on control panel remains
green
If the LED light on the ERV/HRV control panel remains green, the
motors do not energize, and the controls do not operate. This can
indicate that the Polarization in the main AC outlet is inverted
CAUTION: Servicing the ERV/HRV unit with its electrical circuitry can cause
personal injury. Always make sure that power to the unit is disconnected prior to
making any connections. Failure to disconnect the power could result in electrical
shock. Service should only be performed by a qualified service technician.