Bennett Marine AutoTrimPro Installation & User Manual page 47

communication between the ATP
Helm Display and the Control
Unit.
• Solution a: Verify that the
ATP communications LED
is flashing. This is the
lower left LED on the ATP
Control Unit. If this LED
is not flashing, there is no
communications between the
ATP Helm Display and the
ATP Control Unit.
• Solution b: Verify that
the ATP Helm Display
communications cable
is connected to the
communications cable on
the ATP Control Unit . An
extension cable may be
used between the ATP Helm
Display and the ATP Control
Unit. This cable should be
a thin gray cable with a four
position connector.
• Solution c: Unplug
the ATP Helm Display
communications cable and
inspect the pins inside the
connector. If a pin has been
pushed back, remove the
orange retainer, push the pin
forward until it clicks, then
replace the orange retainer.
• Potential Cause 2: The ATP
Control Unit has no power applied
to it.
Bennett Marine AutoTrim Pro | Need help? Call (954) 427-1400
Troubleshooting
continued
• Solution a: Verify that the
red Power LED in the lower
center of the ATP Control
Unit is illuminated. If it is
not illuminated, check the
power supplied to the orange
and black wires of the ATP
Control Unit.
• Potential Cause 3: The HPU is
not connected to the ATP
Control Unit.
• Solution: Verify that the
four-wire cable from the
right side of the ATP Control
Unit (Red, green, yellow,
blue wires) is connected to
the Hydraulic Power Unit
(HPU). If the HPU has a
different connector on it, use
the adapter cable that was
shipped with the system (See
page 5).
• Potential Cause 4: The HPU is
not grounded.
• Solution: The HPU has a
separate ground wire that
must be connected in order
for the HPU to operate.
The HPU ground wire is a
black wire that is connected
to the back of the motor
under the cover. Refer
to the Trim tabs owner's
manual for full instructions
on HPU installation and
troubleshooting.
47