Navman FUEL 3100 Installation And Operation Manual
Also see for FUEL 3100: Installation and operation manual
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Contents
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20 NAVMAN FUEL 3100 Installation and Operation ManualAppendix B - TroubleshootingThis troubleshooting guide assumes that this manualhas been read and understood.It is possible in many cases to solve difficultieswithout having to send the unit back to themanufacturer for repair. Please follow thistroubleshooting section before contacting thenearest NAVMAN dealer.There are no user serviceable parts. Specializedmethods and testing equipment are required toensure that the unit is reassembled correctly and iswaterproof. Repairs to the unit must only be carriedout by a service centre approved by Navman NZLimited. Users who service the unit themselves willvoid the warranty.More information can be found on our Website:www.navman.com1 FUEL 3100 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 10.5 to16.5 V DC. Check the battery voltage using amultimeter.2 The word SIM flashes at bottom left corner ofscreen, values displayed are unexpected:a The FUEL 3100 is in simulation mode (seesection 2-6 Simulation mode).3 Fuel reading is wrong or erratic:a Check for leaks in the fuel line or in the fuelpickup in the tank.b Fuel transducer cable is unplugged ordamaged. Perform a visual check.c Calibration is incorrect (see section 4-3 Fuelsetup).d The fuel REMAINING reading is incorrect. Thefuel tank capacity (SIZE) may be incorrect, or thefuel REMAINING setting may not have beenupdated after a refill. See section 4-3 Fuel setup.e The fuel flow transducer may have been mountedtoo close to the fuel pump, or may be subject toexcessive vibration. Refer to the installationinstructions supplied with the fuel transducer.f The Fuel Flow Transducer damping (dAmP.F)value is not suitable for the engine. Check thatthe value is not set to zero, and then tryincreasing the value until a steady flow rate isshown. See section 4-3 Setup > Fuel.4 Speed reading is wrong or erratic:a Speed transducer cable is unplugged ordamaged. Perform a visual check.b Calibration is incorrect (see section 4-4 Speedsetup).c Interference from electrical noise may be affectingthe FUEL 3100. Review the installation (seesection 5-3 Installing the display unit, and section5-4 Installing the Fuel Flow Transducer).5 Low Fuel Alarm sounds when fuel tank full:a The fuel REMAINING reading is incorrect. Thefuel tank capacity (SIZE) may be incorrect, or thefuel REMAINING setting may not have beenupdated after a refill. See section 4-3 Fuel setup.6 The display unit fogs:a Moist air has entered the breathing tube at therear of the unit. Air the boat or run theFUEL 3100 with backlight fully on.b Water has entered the breathing tube. Returnthe FUEL 3100 for servicing.7. Flow indicates no fuel or low fuela) Check that the fuel cable connectors aresecurely plugged in and the collar is locked inplace. The collar must be locked in place togive a watertight connection.b) A fuel transducer may be clogged. If so,remove the transducer from the fuel line andgently blow through it in the opposite directionto the fuel flow. A fuel filter between the fueltransducer and the fuel tank must be installedas per the fuel installation guide. Failure to doso will void the warranty.c) Inspect the fuel cable from end to end fordamage such as cuts, breaks, squashed ortrapped sections.d) Check that the fuel filter is clean.8. Fuel used or remaining seem inaccurate:a) In rough seas, fuel may surge back and forththrough the fuel transducer, resulting in incorrectreadings. Try installing a one-way valve betweenthe fuel transducer and the fuel tank.b) The Remaining fuel value must be reset afterevery refuelling (see section 4-3 Fuel Setup).c) The fuel tank may not refill to the samecapacity each time due to air pockets. This isparticularly noticable with underfloor tanks.d) Fuel transducers wear out over time and shouldbe replaced after every 5000 litres of fuel.9. A twin engine installation shows only oneflow rate:a) Check that the number of engines is set to 2.See section 4-3 Fuel Setup.10. There is no reading for fuel economy:a) The boat must be travelling through the waterto generate an Economy reading.b) Check that the paddlewheel on the transduceris spinning freely, and that the two magnets inthe paddlewheel are still in place. |
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