Notice #3 AC Frequency Changing Too Fast

Occurs if system voltage is lower or higher than the operational threshold. It is usually caused by a problem with the energy company. It may be a temporary problem, and is automatically corrected by the energy company. If the problem persists, check the following:

Ex) Frequency Changing Too Fast Screen

App Message Screen

Web Event Screen

Check if there other any other alerts from the app.

Check the system voltage.

Inquire to the power company after closing the circuit breaker.

Notice #4, #5 AC Frequency High/ Low

Occurs if system voltage is lower or higher than the operational threshold. It is usually caused by a problem with the energy company. It may be a temporary problem, and is automatically corrected by the energy company. If the problem persists, check the following:

 

Nominal Frequency 60Hz

59.3 to 60.5Hz

 

 

 

 

 

 

 

Hawaii

57 to 60.5Hz

 

 

 

 

 

 

 

Ex) AC Frequency Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

App Message Screen

Web Event Screen

If you receive a message regarding low AC Voltage, please check the circuit breaker.

Problem may occur due to instability of the utility service.

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LG Electronics LGxxxA1C-B3 manual Ex Frequency Changing Too Fast Screen, Ex AC Frequency Low