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Troubleshooting

Control Panels, Alarms and Floats

All SJE-Rhombus control panels must be installed according to national and local electrical codes.  Below are troubleshooting tips for some of the most common issues:

Full Load Current - Single Phase Alternating Current Motors
The following values of full-load currents are typical for motors running at usual speeds and motors with normal torque characteristics. The voltages listed are rated motor voltages. The currents listed shall be permitted for system voltage ranges of 110 to 120 and 220 to 240 volts.

Full Load Current - Three Phase Alternating Current Motors
The following values of full-load currents are typical for motors running at speeds usual for belted motors and motors with normal torque characteristics. The voltages listed are rated motor voltages. The currents listed shall be permitted for system voltage ranges of 110 to 120, 220 to 240, 440 to 480, and 550 to 600 volts.

Alarm Circuit Troubleshooting
Flow chart for troubleshooting alarms.

Simplex Control Panel Troubleshooting
Flow chart for troubleshooting simplex control panels, including Models 112, 312, 113 and 114, starting from the pump does not operate.

Duplex Control Panel Troubleshooting
Flow chart for troubleshooting simplex control panels, including Models 122, 322, 123 and 124, starting from the pumps do not operate.

Timed Dose Control Panel Troubleshooting
Flow chart for troubleshooting simplex timed dose (Model TD) control panels starting from the pump does not operate.

Circuit Board Troubleshooting (Non-IFS Panel Models)
Flow chart for troubleshooting all non-IFS control panel circuit boards (non-Installer Friendly Series®) based on the part number of the circuit board in the panel.

Circuit Board Troubleshooting (IFS Panel Models)
Flow chart for troubleshooting all IFS control panel circuit boards (Installer Friendly Series®) based on the part number of the circuit board in the panel.

Starter Boxes Troubleshooting
Flow chart for troubleshooting starter box control panels starting from the pump does not operate.

Short Cycling
Flow chart for troubleshooting simplex and duplex control panels when the pump short cycles (on and off rapidly).

Duplex Alternating Circuit Board
Flow chart for troubleshooting duplex control panel circuit boards (Models 122, 322, 124, 324) starting from the pumps do not alternate.

Alternating Circuit Board Test (3 & 4 Floats)
Instructions for testing the alternating circuit boards in three and four float systems (testing pump alternation and alarm function).

Duplex 3 & 4 Float Test
Instructions for testing three and four float systems (testing floats).

Pump Switch Control
Schematic of pump switch control.

Contactor Control
Schematic of contactor control.

Alarm Circuit
Schematic of alarm circuit.

Ratings Label
Sample of a Model 112 control panel ratings label.

Schematic Symbols
Commonly used schematic symbols for the water/wastewater industry.

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