Filter
Top Products
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 O-ring in the drain nozzles sit flat.
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.
14
Troubleshooting