User guide
AP6/AP8 SERIES TRASH PUMPS • OPERATION AND PARTS MANUAL — REV. #0 (06/11/14) — PAGE 45
MSS-200 DIAGNOSTICS (AUTO MODE)
Reference Table 13 for a brief explanation of the LED status
indicators when MSS-200 is in AUTO mode.
Table 13. MSS-200 LED Status Auto Mode
LED's Description
12
4 8
Automatic self test. The MSS-200 is turned on. System is energized.
12
84
MSS-200 is awaiting start signal via ground (switch contact is open). Changing to manual start
mode is possible by pressing the OFF/SET and then the MAN button.
12
4
8
Switch contact was closed while energizing the system. Pushing the AUTO or OFF/SET then
MAN button will start engine.
8
2
4
1
Engine is preheating.
8
2
4
1
Engine is starting.
84
12
Engine is in repeated start mode.
84
12
Engine is running. The AUTO LED is lit indicating that the engine was started automatically by
grounding the AUTO terminal.
8
12
8
While the engine was running, the switch contact was closed or the OFF/SET button was pushed
one time. Engine is in the cooling down cycle.