Broan HRV200 ECM Installation Manual page 26

8. TROUBLESHOOTING (
P
ROBLEMS
The error code E01 is
1 displayed on VT9W wall
control screen.
The VT9W wall control
2 screen alternates between
normal display and E03.
The VT9W wall control
3
does not work.
4 Unit does not work.
The VB60W push-button
timer does not work (unit
5
LED lit, no matter the
color).
Unit is always on high
6
speed.
' )
CONT D
P
OSSIBLE CAUSES
• The wires may be in reverse position.
• The wires may be misconnected.
• The wires may be broken.
• The VT9W wall control may be
defective.
• Wrong main control.
• The wires may be in reverse position.
• The wires may be misconnected.
• The wires may be broke.
• Defective wall control.
• Unit is unplugged.
• No power to power outlet.
• The fuse may be defective.
• J10, J9, or J8 connector(s) may be
unplugged.
• The transformer may be defective
(no 9.5 VAC between J8-4 and J8-5).
• The main PCB may be defective.
• The wires may be in reverse postion.
• The wires may be misconnected.
• The wires may be broken.
• The push button may be defective.
• The VB60W push-button timer wires
may be shorted.
Y
OU SOULD TRY THIS
• Ensure that the color coded wires have been connected to
their appropriate places.
• Ensure the wires are correctly connected.
• Inspect every wire and replace any damaged ones. If wires
are hidden into walls, test the control using a shorter wire.
• Replace the VT9W wall control.
• Ensure the main control is an VT9W.
• Ensure that the color coded wires have been connected to
their appropriate places.
• Ensure the wires are correctly connected.
• Inspect every wire and replace any damaged ones. If wires
are hidden into walls, test the control using a shorter wire.
• Replace the wall control.
• Make sure the unit is plugged.
• Test the power outlet with another electrical device (e.g.: a
lamp). If it does not work, call an electrician.
• Check if fuse F1 (located on the PCB) is blown. In that case,
replace fuse F1 as per product nameplate.
• Check the connection of J10, J9, and J8 connectors.
• With unit powered on and J9 connected, check if there is
about 9.5 VAC between J8-4 and J8-5 (YELLOW wires)
transformer connector. If not, change the transformer.
• Replace the main PCB.
• Ensure that the color coded wires have been connected to
their appropriate places.
• Ensure the wires are correctly connected.
• Inspect every wire and replace any damaged ones. If wires
are hidden into walls, test the control using a shorter wire.
• Jump the OL and OC terminals. If the unit
switches to high speed, remove the 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
push button.
• Ensure OC and OL wires do not touch each others.
• Unplug wires from the auxiliary control terminal block and
measure the resistance between cables (there should be
no resistance). If resistance has been detected, ensure the
wires are correctly connected, then inspect every wire and
replace damaged ones.
26
VE0356