Multiquip AP6 Series - Manual (Page 47)

AP6/AP8 SERIES TRASH PUMPS • OPERATION AND PARTS MANUAL — REV. #0 (06/11/14) — PAGE 47
MSS-200 TROUBLESHOOTING
Reference Table 15 for basic troubleshooting solutions.
Table 15. MSS-200 Troubleshooting
LED's Symptom Possible Problem Solution
8 4
2 1
No oil pressure or over-
speed
O/S to Oel jumper wire not connected?
Check jumper wire from
O/S to Oel terminal.
1
4
2
8
Defective alternator or pick-
up, wire breakage or V-Belt
breakage.
MS-200 is not receiving a frequency signal? Check wiring (input signal)
4
2
8
1
Engine did not reach the
set engine speed within 30
seconds
Is programmed value correct? Re-program value
2
8
1
4
Cannot read sensor inputs.
Electrical short, wire breakage, or defective
transistor?
Check wiring, sensor
components.
2
8 4
1
Incorrect alternator or oil
pressure switch reading
Is programmed value correct? Re-program value
2
4
1
8
All engine start attempts
failed.
Defective fuel filter?
Empty fuel tank?
Clean or replace fuel filter.
Check fuel level.