Roubleshooting - Broan ERV70S User Manual

4. T

ROUBLESHOOTING

Shock hazard. Never open the electronic box. No user-serviceable parts
inside. There is a fuse on the electronic board. Never attempt to replace it. Refer
servicing to qualified service personnel.
If the unit does not work properly, reset the unit by unplugging it for one minute
and then replug it. If it is still not working properly, refer to table on next page.
P
ROBLEMS
1 Unit does not work.
2 Condensation on windows
(air too humid).
3 Inside air too dry
(on cold season).
4 Air too cold at the air supply
grille (on cold season).
5 The LED of the integrated
control is blinking GREEN.
6 The LED of the integrated
control is blinking AMBER.
7 The integrated defrost
control push-button does not
work.
For wall controls problems, refer to the Troubleshooting section in the Main and auxiliary wall
controls user guide (included with the ventilation unit and also available at www.broan.com).
If the problem is still not solved, call your installer or the nearest approved Service Center.
Also, you can reach the Customer Service Department at the following phone number:
!
WARNING
Y
OU SHOULD TRY THIS
• See if the unit is plugged in.
• See if the unit is receiving power from the house
circuit breaker or fuse.
• Operate the unit on maximum speed ventilation until
the situation is corrected.
• Leave curtains half-open to allow air circulation.
• Store all firewood in a closed room with a
dehumidifier or in a well ventilated room, or store the
wood outdoors.
• Do not adjust the thermostat of your heating
system below 64°F.
• Temporarily use a humidifier.
• Operate the unit in recirculation mode (if available).
• Check if the exterior hood is not blocked.
• Operate the unit in low speed ventilation or in
intermittent or recirculation mode (if available).
• Install a duct heater.
• There is a problem with the thermistor. The unit is
still working, but will defrost frequently. Contact your
installer.
• There is a problem with the motorized damper. The
unit is OFF. For a 2½-hour period, the unit will try to
reset the damper at every 30 minutes. After 2½ hours,
if the problem is not solved, the unit stops trying to
reset damper.
• Contact your installer.
• The 30-second boot sequence is not completed, see
step 2.1 Integrated Control on page 4.
1-877-862-7626.
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