Troubleshooting - Airflow Duplexvent DV65 Entro-V User, Maintenance And Installation Manual

14. TROUBLESHOOTING

Failure
Outdoor air
coming into
the dwelling is
cold.
The unit has
been switched
off unexpectedly.
The unit makes a
lot of noise.
Water leakage
near the unit.
Unpleasant smell
near the unit.
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Reason
•Air cools down in the attic ducts"
•The heat exchangers frozen which is
why extract air cannot heat the
incoming air.
•The extract fan is not running.
•The extract air filter or the heat
exchanger is clogged.
•Mains voltage failure
Rumbling/Ratting noise
Fan motor fault
Condensate trap is clogged of frozen.
Condensate pipe is has come loose.
Condensate trap (U-bend) below the
unit is empty.
The condensate pipe is not
completely in the trap.
The condensate pipe or condensate
trap is blocked of frozen.
USER
AND MAİNTENANCE MANUAL
Solution
✓ Check the duct insulation
✓ If the heat exchanger frozen
contact your supplier/installer to
reduce the set point of the frost
protection facility
✓Contact your supplier/installer.
✓ Check that the filters and the
heat exchanger are clean.
✓Consult a qualified electrician to
check mains power supply to units.
✓Contact your supplier/installer.
✓Check the condensate drain and
clean it, if necessary change it.
✓Fill the condensate trap with
water.
✓Push the pipe deeper into the
trap.
✓Check the condensate drain and
clean it, if necessary
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