S Series FW 3.02.02
www.stenner.com
88
TROUBLESHOOTING – MOTOR
HAZARDOUS VOLTAGE: DISCONNECT
power cord before removing motor cover for service.
Electrical service should be performed by trained personnel only.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Display is blank or not readable
No power cord connection point
Check voltage of receptacle/controller
output voltage
Failed power supply
Return to factory for evaluation
Pump requires re-initialization
Cycle power to the pump
Display is too dim
Increase display brightness in the
CONFIGURATION menu
No response to input signal
Pump is in alarm or STANDBY condition
Clear and correct any alarm or indicated
conditions (leak detect, standby, etc.)
Pump is not in the correct mode
Ensure that pump has been programmed
for the correct input signal and that the
operating display shows the desired mode
of operation
No signal or improper signal level input
If in signal mode, confirm signal level
to the pump
input to the pump by looking for the icon
on the screen
Input signal is not wired correctly
Confirm that the input signal is connected
to the correct wires
Output is erratic
Signal is fluctuating rapidly
Check stability of signal being input to
the pump
Noise on the signal wire
If shielded wire is connected to the pump
input signal cable, ensure it is propperly
grounded at the signal source
Output is higher or lower
Signal is fluctuating rapidly
Check programming, ensure the values
than expected
entered are correct
Pump calibration data is incorrect
Check that the value entered for
CALIBRATION in the CONFIGURATION
menu is correct
Input signal level is higher or lower
Check input signal level to the pump
than anticipated
Pump cycles ON/OFF
Failed fan
Return to factory for evaluation
Pump is too hot
Check that maximum ambient
temperature is less than 104°F; Shade
pump if exposed to direct sunlight
Red (+12VDC) wire on the signal cable Cap and insulate the Red wire to prevent
is not capped and insulated
it from shorting
(if not terminated)
Load too high or shortened on
Maximum loop impedance is 300mA;
4-20mA output
Ensure output is not shortened
