Micro Autonomations LLC – Fan Controller v3
17
Document Rev 1.0
Troubleshooting
Problem
Solution
Fan does not turn on
-
Verify that the fan has a constant 12v to it.
-
Verify that the controller has power and that the LEDs are on.
-
Verify the Speed and Trigger wiring between the fan and the
controller.
-
Test the fan by disconnecting the controller, and jumping 12v to
the Trigger Output signal. After a moment the fan should turn on
and go to full speed.
Fan does not turn on with
air conditioning input
-
Verify that the AC system is either grounding or providing 12v to
the air conditioning input.
-
Wait 5 seconds for the fan to turn on.
After a short delay, the fan
turns on, and won’t turn off
-
Check the Remote Status LED to see if it blinks 3 times after being
steady for 5 seconds. This indicates that the air conditioning
input is active.
-
Disconnect the air conditioning input as a temporary test to verify
that the fan no longer turns on after a short delay.
-
Verify that the air conditioning input is not being grounded or tied
to +12v, unless the system is commanding it.
Programmed values not
being saved
-
Make sure you pressing the
Prg
button to save values, and not
the
Skip
button.
