VanEE 190 H Installation Manual - page 16
9. 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.
• Thermistor error.
Replace the thermistor kit.
LED flashes AMBER.
• Damper error.
Go to Point 6.
Problems
Possible causes
You should try this
1. Unit does not work.
• The circuit board may be defective.
• 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 motors run on
high speed and the damper opens, the circuit board is not defective.
2. The damper actuator
•The fuse may be defective.
• Check fuse F1 if it is blown. In that case, replace fuse F1.
does not work.
• The damper actuator or the integrated
• Unplug the unit. Disconnect the main control and the optional controls(s)
damper port mechanism may be defective.
(if need be). Wait 10 seconds and plug the unit back. Check if the damper
opens. If not, use a mulltimeter and check for 24V AC on J12-1 and J12-2
(in electrical compartment). If there is 24V AC, replace the entire port assembly.
NOTE: It is normal to experience a small delay (7-8 seconds) before
detecting the 24V AC signal at starting-up. This signal will stay
during 17-18 seconds before disappearing.
• The circuit board or the
• If there is no 24V AC, check for 24V AC between J8-1 and J8-2. If there is
transformer may be defective.
24V AC replace the circuit board, and if there is no 24V AC, change the transformer.
3. The wall control does not
• The wires may be in reverse position.
• Ensure that the color coded wires have been connected to their
work OR its indicator flashes.
appropriate places.
• The wires may be broken.
• Inspect every wire and replace any that are damaged.
• The wire in the wall OR the wall
• Remove the wall control and test it right beside the unit using another
control may be defective.
shorter wire. If the wall control works there, change the wire. If it does not,
change the wall control.
4. The Humidity Control does not
• The wires may be in reverse position.
• Ensure that the color coded wires have been connected to their
work OR the 20-minute
appropriate places.
push-button timer does not
• The Humidity Control or push button
• Jump the OL and OC terminals. If the
work OR its indicator light
may be defective.
unit switch to high speed, remove the
does not stay on.
Humidity Control or push button and
test it right beside the unit using
another shorter wire. If it works here,
change the wire. If it doesn’t, change the Humidity Control or the push button.
5. The motor does not work.
• The circuit board may be defective.
• Press on the integrated control push button until the unit turn on low
speed (the LED will light AMBER). Using a multimeter, check the voltage
on J9-4 and J9-3. Refer to Section 6
Wiring Diagram. The reading
must be 120 volts A.C. Then set the unit on high speed by pressing on
the integrated control push button one more time (the LED will light
GREEN). Using a multimeter, check the voltage on J9-4 and J9-2. The
reading must be 120 volts A.C. Check also between J4-2 and J4-1, the
reading must be 120 volts A.C. Refer to Section 6
Wiring Diagram.
Check if the fuse F1 is intact. If all the readings correspond to the right
voltage values, the circuit board is not defective. If one or both readings
are different, change the circuit board.
• The motor may be defective.
• Using a multimeter, check for 120 volts A.C. for the following speeds:
High Speed: between GREY and Orange wires; Low/Medium Speed:
between GREY and RED/BLUE wires. Refer to Section 6
Wiring Diagram.
• The motor capacitor may be defective
• Unplug the unit. Check for continuity between Pin 5 on the 6-pin connector
(brown leads) and Pin 3 of the capacitor connector. Also check for
continuity between Pin 4 on the 6-pin connector (brown leads) and
Pin 1 of the capacitor connector. Refer to Section 6
Wiring Diagram.
6. The defrost cycle does not work
• Ice deposits may be hindering
• Remove the ice.
(the fresh air duct is frozen OR
the damper operation.
the fresh air distributed
is very cold.
•The damper rod or the port
• Inspect these parts and replace if necessary.
damper itself may be broken.
• The damper actuator or circuit board
• See point 2.
may be defective.
7. The integrated control
• The 30-second boot sequence
• See Section 4.1.1
Boot Sequence.
push button does not work.
is not completed.
NO C NC I OC OL Y R G B
VE0097
NO C NC I OC OL Y R G B
VE0098
- 16 -
WARNING
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.
!