Maintenance / Instructions For User - Venmar AVS ERV DUO 1.5 Mode D'emploi

10. MAINTENANCE / INSTRUCTIONS FOR USER

Risk of electric shocks. Before performing any maintenance or servicing, always disconnect the unit from its
power source.
• Review with the user the steps required for the regular maintenance of her/his ventilation system. These steps are described in detail
in the user manual.
• Warn the user of the necessity to rebalance the system following a major house renovation or following the installation of any extra
registers.
• Make sure the user understands how to use the main control as described in the user manual.
Do not oil the motor. It is already permanently lubricated.
11. TROUBLESHOOTING
If the integrated control LED of the unit is flashing, this means the unit sensors detected a problem. See the list below to know where on
the unit the problem occurs.
LED flashes GREEN (double blink)
LED flashes AMBER
A few diagnosis procedures may require the unit to be in operation while proceeding. Open the unit door and
bypass its magnetic switch by putting the door white magnet on it. Be careful with moving and/or live parts.
P
ROBLEMS
1. The error code E1 is
displayed on Altitude or
Deco-Touch wall control
screen.
2. There is no outside
temperature displayed
on Altitude wall control
screen .
3. Altitude or Deco-Touch
wall control screen
alternates between
normal display and E3 or
E4 appears on screen.
4. On Altitude wall control,
there is an important
difference between
temperature displayed
and real temperature.
5. Unit does not work
(no LED is lit on the
integrated control).
• Thermistor error (unit is runnig)
• Damper error (unit is OFF)
P
OSSIBLE CAUSES
• The wires may be in reverse position.
• The wires may be broken.
• The wires may have a bad connection.
• The unit is not compatible with
Altitude wall control (Constructo).
• Unit is on error and integrated control
LED flashes (GREEN or AMBER).
• The unit thermistor is defective
(integrated control LED
GREEN).
• The Altitude or Deco-Touch wall
control needs to be reset.
• The Altitude or Deco-Touch wall
control is defective.
• Exterior air intake port is blocked.
• The unit thermistor is defective
(integrated control LED
GREEN).
• The unit damper has been blocked
or broken (integrated control LED
flashes AMBER and unit is OFF).
• Motor won't turn.
• The transformer may be defective.
• The circuit board may be defective.
• The unit is unplugged.
• The unit door is opened.
• A fuse is blown.
• Wrong control connections.
!
WARNING
CAUTION
!
WARNING
Y
OU SHOULD TRY THIS
• Ensure that the color coded wires have been connected to their appropriate
places.
• Inspect every wire and replace any that are damaged.
• Ensure the wires are correctly connected.
• Refer to unit spec. sheet for control compatibility.
NOTE: At its very start-up or after a power failure, it takes some minutes before
the outside temperature appears on screen. The delay duration depends
on which operation mode the wall control is set. The shortest delay is
obtained when the wall control is set on MIN or MAX in VENT Mode.
• Check if unit is operating.
• Replace the unit thermistor.
flashes
• Reset the Altitude or Deco-Touch wall
control by pressing simultaneously
on both keys for 8 second (as shown
at right). Then, unplug the unit for
30 seconds. Plug the unit back.
• If the problem is not solved, replace the Altitude or Deco-Touch wall control.
• Clean the exterior air intake port.
• Replace the unit thermistor.
flashes
• Check for the proper operation of the unit damper; replace if necessary.
• Confirm that the motor is running, if not refer to point 9.
• Check for 24 VAC on J8-1 and J8-2.
• Unplug the unit. Disconnect the main control
and the optional(s) control(s) (if need be).
Jump G and B terminals. Plug the unit back
and wait about 10 seconds. If the motor runs
on high speed and the damper opens, the
circuit board is not defective.
• Plug the unit.
• Close unit door.
• Inspect fuse on circuit board (refer to wiring diagram F1 on page 15).
• Try the integrated control (see Section 4.1 on pages 11 and 12).
19
Replace the thermistor kit
Go to point 10
8
B
OTH DURING SEC
VQ0048A
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VQ0062
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