Why is my water heater flashing a blue light?

A water heater flashing a blue light typically indicates that it’s operating normally or in standby mode. However, the meaning of indicator lights can vary depending on the make and model of the water heater. Here are a few possibilities:

  1. Normal Operation: Some water heaters use blue indicator lights to signify that the unit is functioning correctly and heating water as expected. In this case, a steady blue light would indicate normal operation.
  1. Standby Mode: Certain water heaters have a standby mode where they maintain a low level of power consumption until hot water is needed. A flashing blue light might indicate that the water heater is in standby mode, ready to heat water when necessary.
  1. Error Code: While less common, some water heaters use blue indicator lights to signal specific error codes or issues. For example, a flashing blue light might indicate a minor fault or maintenance reminder.

To accurately determine the meaning of the blue light on your water heater, refer to the owner’s manual or manufacturer’s documentation. The manual should provide information on the various indicator lights and what they signify. If you’re unable to find the information you need or if you suspect there’s a problem with your water heater, consider contacting the manufacturer’s customer support or a qualified technician for assistance.

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