D. Black Sensor (Lo-Sensor)
E. Control Module
F. Pump Power Cord
*“Piggyback plug” and 120 VAC outlet are not pictured
Product Specifications
Product Dimensions 2.8 x 2.5 x 3.5 in
Weight 14.4 oz
Output Rating 120 VAC, 15 Amp, 1 HP
Alarm Rating 80 dB
Power 120 VAC, 60 Hz
Sensor Cable Length 12 ft
Anti-Airlock Cycle 2 Attempts
How the Sensors Work: Do I need a ground wire?
The sensors detect the presence of water by using a continuity circuit. The continuity circuit works by allowing a very small
current to flow from each the sensor, through the water, to ground when the tip of the sensor is in water. When no water is
present, the circuit is broken and no current flows. Normally, the pump provides the ground reference needed for the continuity
circuit to work, but occasionally it won’t. A Flashing LED and audible alarm indicates a weak ground reference. When this
happens, it is necessary to provide a ground reference for the sensor to work.
Adding a Ground Wire:
Step 1 Strip 1 inch of insulation off each end of a 14 AWG length of wire.
Step 2 Secure one end of the wire to a copper water pipe or metal electrical conduit.
Step 3
Place the other end of the wire into the pit so that it is below the Lo-Sensor.
NOTE: No danger of electrocution. Visit our website www.hydrocheckproducts.com for more information.
TROUBLESHOOTING:
Alarm & LED Guide
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