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Sub-Zero Classic Series (BI) LO L1 Low Voltage

Topics:

  • What does L0 L1 (L0L1, LO L1, LOL1, lo l1, l0l1) on a Classic series (BI) unit mean?
  • L0 L1 (L0L1, LO L1, LOL1) is shown on control panel when the unit is powered by a generator
  • Low voltage and brownout considerations for BI Series units
  • LO L1

Answer:

When Classic series (BI) units show L0 L1 on the control panel, it indicates a low voltage or brownout condition. This means that the unit is not getting enough voltage to work properly.

  • Applying low voltage for an extended period of time may interfere with the compressor startup voltage requirements and may cause damage to compressor electricals.
  • To avoid damage, turn the unit off until full power is restored. Then turn the unit back on.
  • If the home is susceptible to power surges or frequent brownouts (a drop in voltage in an electrical power supply system), contact a qualified electrician.

If these steps do not resolve the issue, no further troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.

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