Page 15
TROUBLE SHOOTING GUIDE
Problem
Suggested Action
The LED light on the
damper controller
does not lit up after
powering up.
• Check the power supply.
• Check the cable to and from this damper
controller.
• Check the connection between the cables and
the controller.
Touchpad has
nothing shown on
LCD.
• Check the power supply.
• Check the cable and plug to the touchpad.
Touchpad display is
not normal.
• Disconnect the battery at first.
• Reset the touchpad by turning off and turning
on the power supply again. If the display is
normal, plug in the battery again.
Dampers have no
response when
turning it on or off.
• Check the damper controller and make sure
that the LED lit up.
• Check the damper address.
• Check the cable to the damper controller.
Some zones cannot
be turned off.
• Check if it is spill zone (with lower address).
• Check spill setpoint.
All zones open and
touchpad display
“safety”.
• Check high & low limit setting.
• Check and replace the supply air sensor.
Please contact distributors for any other
problems not listed as above.
