Troubleshooting
Lack of heat
1.Check that the room thermostat is set to the desired temperature.
2.Ensure there is power to the unit.
3.Verify that the airflow in and out of the system matches designed specs. If airflow is low, check for blockage in the filter or some other obstruction.
HRV core freezes up
1.Make sure that the supply and exhaust lines are bal- anced according to the "Balancing Procedure" in this manual.
2.If out of balance, ensure that the balancing dampers have not been moved and that there are no obstruc- tions in the outside hoods.
3.If necessary, install optional defrost kit, according to instructions.
Water sits in drain pipes
1.Check drain pans or lines for plugs.
2.Confirm that the HRV core is installed according to manufactures recommendations.
3.Check the drain line for kinks.
4.Make sure that the
5.Ensure the drain line has enough "fall" to it.
Condensation/ice forming inside ventilation ducts
A rip in the vapor barrier or poorly sealed joints may cause condensation or ice to form on the ducting. If this occurs, replace the entire line.
Humidity levels are too low
1.If you have installed a dehumidistat ensure that its set- ting is correct.
2.Check humidifier settings.
3.Change thermostat fan switch from manual to automat- ic.
4.Change ventilation switch on furnace from continuous (low) to automatic.
Humidity levels are too high
1.If you have installed a dehumidistat ensure its setting is correct.
2.Install a dehumidistat if necessary
3.Change ventilation switch on furnace from automatic to continuous.
4.Change thermostat fan switch from automatic to manual.
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