Floscan 5A20-20A-1 AccuTroll & CruiseMaster - Manual (Page 19)

08/20/2004 4001-102-00I
FloScan Instrument Company, Inc. Tel: (206) 524-6625 Fax: (206) 523-4961
3016 NE Blakeley Street, Seattle, WA 98105 Email: [email protected] Http://www.floscan.com
TROUBLESHOOTING
Series 5400(0)/5500(0)/56100 AccuTroll & CruiseMaster GPH/LPH Instrument
BEFORE CALLING FOR ASSISTANCE, COMPLETE THESE TROUBLESHOOTING CHECKS AND RECORD YOUR FINDINGS .
TECHNICAL SUPPORT REQUIRES THIS INFORMATION BEFORE A RETURN AUTHORIZATION WILL BE ISSUED. IT TAKES ABOUT
20 MINUTES AND IS VERY IMPORTANT IN ANALYZING SYSTEM PROBLEMS .
Before starting record the Instrument MODEL # ________________________ and all Switch settings.
ON
OFF
Switch Settings 1 2 3 4 5 6 7 8 9
FAULT PROBABLE CAUSE SEE SECTION:
Blank LCD Display. Wiring Section I
No Back-Lighting. Wiring/bulb failure Section III
Low Totalizer Reading, more than 10%. Calibration Calibration sheet
Sensor orientation/failure Installation Sheet
High Totalizer Readings, more than 10%. Incorrect/defective sensor Operations
Incorrect switch settings Manual page
Suction leak Section VI
Fluctuating GPH readings. Suction leak Section VI
Low RPM operation Section VIII
No GPH or totalizer reading. Wiring/Instrument failure Section IV and V
Sensor orientation/failure Installation sheet
No sensor readings. Wiring Section IV and V
Sensor failure Section II
High sensor readings. Suction leak Section VI
Wrong switch settings Calibration sheet
Sensor orientation Section VII
I. INSTRUMENT HEAD DIAGNOSTIC TEST
1. Referring to the wiring diagram, verify that Instrument & Sensor(s) are wired correctly.
2. Verify that all wiring connections are tight and not corroded. Check continuity with an ohmmeter.
3. With power switched ON, measure voltage between the RED and BLACK wires,
(Take readings on the Instrument side of the butt splice connections). __________VDC
The voltage reading should be between 12 and 14.5 VDC. Proceed to step 4 if it is, if not:
a. Check for voltage between the RED wire and another ground point.
b. If voltage is present, trace along the BLACK wire until its’ open connection is found.
c. If no voltage is present, trace the RED wire until its’ open connection is found.
4. With switched power ON slide, “Dip” switches 1-9 to the ON, or UP position. This places the
Instrument into diagnostic mode.
NOTE: If the LCD display is blank, verify that the totalizer reset switch, (Connected between the GREEN
wire and +12 volts) is in the ON position. Verify that 12 VDC is present between both switch
terminals and the Black wire. Next check the, “Green wire” fuse.