17
High Torque:
A thermal overload is fitted on the circuit board to protect the motor/gearbox from excessive
torque. If the Indexing Valve Shoe is jammed and unable to continuing rotating, the thermal
overload will shut off power to the circuit board. The pneumatically operated backwash
valve will close. The fault lamp will illuminate
YELLOW
in color. Please refer to Section 5.0
for corrective action.
High Differential Pressure (Optional):
This fault is only available when an optional set of micro switches is provided. The fault
lamp will illuminate
RED
when the differential pressure across the filter exceeds the user
defined high set-point on the DP switch. Please refer to Section 5.0 for corrective action.
Please Note:
If any of the aforementioned fault conditions are met, the backwash valve will close and
remain closed until the fault is remedied. Once the fault is identified and corrected, switch
power off and back on. The filter will then perform a reset routine and return back to the
filter position.