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WL500
Manual
Page 77 Revision 4‐10‐2019
1.
Circuit Breaker Tripping:
A circuit breaker “trips” or shuts off the electrical flow to protect the circuit from overheating and
causing damage‐‐even possibly an electrical fire.
So, before you go and flip the switch on again, take a moment to determine what the root cause is
of the tripping. The three typical causes are: Overloaded Circuit, Short Circuit, Ground Fault in Outlet
not equipped with Ground Fault Circuit Interrupt (GFCI) protection. See GFCI troubleshoot for
outlets equipped with GFCI protection.
2.
Circuit Overload
The circuit overloading is the most common reason your circuit breaker is tripping.
That means you’re running too many heavy power consuming devices at the same time on the same
circuit. Ensure adequate service and that no other devices are tied to the same circuit.
3.
Short Circuit
A short circuit happens when a “hot” wire (black) touches another hot wire or touches a “neutral”
wire (white) in one of your outlets or devices connected to it.
When these two wires touch, a large amount of current flows, creating more heat than the circuit
can handle, so it will trip the circuit breaker.
You can identify the root of a short circuit by visually checking for discoloration of components from
excessive heat caused by the short. You can perform continuity or resistance checks between
components to verify short circuits. Always replace any component and associated parts that have
been exposed to a strain of a short circuit. All wires and connectors should be replaced to avoid
failures.
4.
Ground Fault
A ground fault happens when a hot wire (black) touches the ground wire (bare copper or green) on
the side of a metal outlet box which is connected to the ground wire.
Just like a short circuit, you need to find the root cause and repair anything looks out of the ordinary
within the circuit or equipment.