Dock Lifguard was just installed and it is not detecting electrical current?

a) Insure the Dock Lifeguard unit is properly grounded to the dock, and the dock is connected to a grounding rod at shore.  Proper grounding is required for correct operation. For all wood docks, connect ground reference wire to equipment ground.

b) If you injecting electricity in the water for testing purposes, make sure that there is a load.  Voltage needs a load to have it travel through the water. 

c) Check for underwater structures such as sea anchors, underwater bracing, or metal spud poles.   These items my draw voltage away from the probe location.  You may want to relocate install location of the proble.  Note:  Probe wire may be made longer.

Dock Lifeguard sounds an alarm when I turn on my lift blower.

a) When the brushes on blower motors start wearing out, this can result in electrical current leaking back to ground.  The Dock Lifeguard will detect this occurrences.  Replacing your lift blower motor should eliminate this condition.

Dock Lifeguard sounds an alarm with nomial amount of voltage is in the water.

a) The Dock Lifeguard sensitivity and trigger levels may a configured to filter out lower levels of stray voltage.