Troubleshooting - Venmar Solo 1.5 Installer Manual

13.0 Troubleshooting

NOTE: Be sure to unplug and inspect the unit before proceeding with these steps.
Start-up troubleshooting:
Problems
1. Unit doesn't work.
.
2. The damper actuator
does not work.
3. The wall control does
not work
OR
the indicators flash.
4. The dehumidistat
does not work OR
the 20/40/60-min.
push-button timer
does not work OR its
indicator light does not
stay on.
Possible causes
• The circuit board may
be defective.
• The 9-pin connector may
have a loose connection.
• The damper actuator may be
defective.
• The circuit board may be
defective.
• Erratic operation of the
control every 8 seconds.
• The wires may be in reverse
position.
• The wires may be broken.
• There may be a short-circuit.
• The wire in the wall OR the
wall control may be defective.
• The circuit board may
be defective.
• The dehumidistat or push
button may be defective.
You should try this
• Unplug the unit. Disconnect the main
control and the optional(s) contol(s)
(If need be). Jump B and G terminals.
Plug the unit. If the motor runs on
high speed and the damper opens,
the circuit board is not defective.
• Unplug the unit and check to make sure all the crimp
connections are secured. Check the damper actuator
connections as well.
• Feed 120 V directly to the damper actuator. If the
problem persists, replace the damper actuator.
• Replace the circuit board if the problem is not solved by
the above.
• Unplug the unit. Wait 30 seconds. Plug it back in.
• Ensure that the color coded wires have been connected
to their appropriate places.
• Inspect every wire and replace any that are damaged.
• With the help of a multimeter, check for continuity.
• Jump "B" and "G" (BLACK and GREEN). If unit switches
to high speed, remove the wall control and test it right
beside the unit using another shorter wire. If the wall
control works there, change the wire. If it doesn't,
change the wall control.
• If the unit does not switch to high speed, replace the
circuit board.
• Jump the OL and OC terminals. If the
unit switches to high speed, remove the
dehumidistat or push button and test it
right beside the unit using another shorter
wire. If it works there, change the wire.
If it doesn't, change the dehumidistat or
the push button.
31
B
G
VE0082
OL
OC
VE0081