Franklin 5870206300 ユーザーズマニュアル

Should an application or system problem occur, built-in diagnostics will
protect the system. The red “FAULT” light on the front of the SubDrive300
controller will fl ash a given number of times to indicate the nature of the 
fault. In some cases, the system will shut itself off until corrective action has 
been taken. Fault codes and the recommended corrective action for each 
are listed in the following chart.

** “Cycle input power” refers to turning the power off until both lights fade off, 

then applying power again.

Air-locked pump. 
Overpumped or dry well. 
Worn pump. Damaged 
shaft or coupling. Blocked 
pump or screen.

Wait for well to recover and 
automatic restart timer to time 
out. If the problem does not 
correct, check motor and pump. 
See description of “Smart Reset” 
on Page 26.

Low line voltage.
Misconnected input leads.

Check for loose connections. 
Check line voltage. Report low 
voltage to the power company. 
Unit will start automatically when 
the proper power is supplied.

Motor/pump misaligned. 
Abrasive/Sand-bound pump. 
Dragging pump or motor.

Unit will attempt to free a locked 
pump. If unsuccessful, check the 
motor and pump.

Loose connection. 
Defective motor or cable.

Check motor wiring. Make certain 
all connections are tight. Make 
certain proper motor is installed. 
Cycle input power** to reset.

When fault is indicated 
immediately after power-up, 
short circuit due to loose 
connection, defective cable, 
splice or motor.

Check motor wiring. Cycle input 
power** to reset.

When fault is indicated 
while motor is running, over 
current due to loose debris 
trapped in pump.

Check pump.

High ambient temperature. 
Direct sunlight. Obstruction 
of air-fl ow.

This fault automaticallyresets 
when the temperature returns to a 
safe level.