21
FUEL 3100 / DIESEL 3200
Installation and Operation Manual
NAVMAN
6 Troubleshooting
This troubleshooting guide assumes that this
manual has been read and understood.
It is possible in many cases to solve difficulties
without having to send the unit back to the
manufacturer for repair. Please follow this
troubleshooting section before contacting the
nearest Navman dealer.
There are no user serviceable parts. Specialized
methods and testing equipment are required
to ensure that the unit is reassembled correctly
and is waterproof. Repairs to the unit must only
be carried out by a service centre approved by
Navman NZ Limited. Users who service the unit
themselves will void the warranty.
More information can be found on our website:
www.navman.com
1 Instrument will not turn on:
a Power/data cable is damaged or
disconnected. Perform a visual check.
b Fuse is blown or circuit breaker has tripped.
Replace the fuse or reset the circuit breaker.
c Battery voltage is outside the range 9 to
30 V DC. Check the battery voltage using a
multimeter.
2 The word SIM flashes at bottom left
corner of screen, values displayed are
unexpected:
a The instrument is in simulation mode (see
section 2-9).
3 Fuel reading is wrong or erratic:
a Check for leaks in the fuel line or in the fuel
pickup in the tank.
b Fuel sensor cable is unplugged or damaged.
Perform a visual check. DIESEL 3200: check
the LED light on the underneath of flow
sensor blinks when the engine draws fuel.
c The fuel
REMAINING
reading is incorrect.
The fuel tank capacity (
SIZE
) may be
incorrect, or the fuel
REMAINING
setting
may not have been updated after a refill.
See section 5.
d Sensors require calibration (see section 3-4;
diesel sensors do not normally need to be
calibrated).
e The fuel flow sensor may have been
mounted too close to the fuel pump, or
may be subject to excessive vibration. Refer
to the installation instructions supplied
with the fuel sensor.
f The fuel flow sensor damping (
dAmP.F
)
value is not suitable for the engine. Check
that the value is not set to zero and then try
increasing the value until a steady flow rate
is shown (see section 3-5)
4 Speed reading is wrong or erratic:
a Speed readings require the optional speed
sensor to be installed and setup (see
section 3-6).
3 If the boat has twin tanks, press
ENT
. Then
press until the display shows the name of
the tank to be filled,
PORT
or
STBD
.
4 Write down the number displayed,
FUEL
,
which is the amount of fuel now in the tank.
5 Add fuel to the tank, writing down how
much you add.
6 Add together the two figures you have
written down, to calculate the amount of
fuel now in the tank. Press
ENT
. Then press
or hold to change
FUEL
to the amount
of fuel now in the tank.
7 Press
ENT
, then press
ESC
to return to the
main display.
8 If the boat has twin tanks and you are
adding fuel to the other tank as well, repeat
the above steps.
Note:
If you follow procedure b above every time you
add fuel, then a small error will accumulate,
because it is hard to measure exactly how
much fuel you add. To avoid this, about every
ten tankfulls of fuel, fill the tank and follow
procedure
a
.
c When you remove fuel from a tank
Repeat the steps for procedure b above, but:
i
This time subtract the fuel you have
removed from the original amount of fuel
in the tank to calculate the amount of fuel
now in the tank.
ii Press or hold to change
FUEL
to the
amount of fuel now in the tank.
