Xylem IM182 Balanced Flow - Manual (Page 10)

10
4: TROUBLESHOOTING
The status light described in Section 3 Installer Pre-Start Selections is used to indicate system status i.e. running,
stopped, or faulted. When faulted, the status light will be red. The error code is the number of quick flashes followed
by a 1 second pause. The number of flashes can be any number from 2 to 8. The error code will be repeated until
cleared. Some errors will clear themselves with time. Others must be cleared manually by turning the power off for 1
minute. The following table describes the various errors that can occur.
4: TROUBLESHOOTING
Table 6: Fault Blink Codes (continued on next page)
NO LIGHT
Flashes Controller Status Description
None Low/No Input Voltage Check the input voltage to the controller. Measure the voltage between
L1 and L2 using an AC Voltmeter. This voltage should be greater
than 190Vac.
GREEN LIGHT CODES
Flashes Controller Status Description
Constant Standby/Low Voltage Constant Green Light indicates the pump is off. The system is in Standby
mode when there is no flow in the system and the pressure setting has been
reached. The system is in a Low Voltage condition when the line input
voltage drops below 190VAC.
Blinking Pump Running Flashing Green Light indicates the pump is running.
RED LIGHT CODES
Flashes Controller Status Fault Description
This information is to be used by professional installers or qualified
Controller Action personnel only.
Constant Controller Error Internal controller fault. Replace controller.
2 Blinks Dry Well This fault can be caused by:
• Water supply level in well falls below suction inlet of pump.
• Plugged suction screen.
• Restriction in pipe between pump and pressure sensor.
• Air bound pump – see “Purging System”
• Incorrect setting of “MAXIMUM SPEED” switch. Be sure to set the
“MAXIMUM SPEED” switch to 80 Hz when using mismatched pumps
(water ends) and motors.
• Incorrect setting of “MOTOR OVERLOAD SETTING (SFA)” switch.
Ensure the Motor Overload Setting (SFA) Switch is not set higher than the
Service Factor Amps (SFA) listed on the motor nameplate.
In systems where the motor operates at less than Service Factor Amps the
controller may show a false “dry well” fault. See Dry Well Sensitivity Section.
If problems persists, please verify supply capacity.
The controller will automatically restart according to the chart below.
Dry Well Fault Reset table:
Fault 1 (Start Point) - resets after 1 minute
Fault 2 - resets after 10 minutes
Fault 3 - resets after 20 minutes
Fault 4 - resets after 30 minutes
Fault 5 - resets after 60 minutes
Will repeat every 60 minutes, when the system cycles Off the
Dry Well will default back to the start point.
To clear the fault, turn off
power to the controller, wait
1 minute, turn on power to
the controller. If fault persists
contact installer.
The controller will
automatically restart according
to the table shown on the right.
If fault persists contact installer.