l o a d i n g

The Message Said BAD LINE, but the Measurements Mattered More

Both legs were present and the range received 208 V line to line. That evidence prevented the displayed words from being treated as a complete diagnosis.

The measured evidence

  • The display showed BAD LINE.
  • Each supply leg measured approximately 120 V.
  • The two legs measured 208 V together.
  • The diagnostic discussion considered that line-to-line value acceptable for the installation.

The same symptom can have a different cause. A BAD LINE message must be interpreted against the model data and the building service; the words on the display do not replace measurements.

Why the power board became the next branch

The original concern was that the range could see only one side of its supply. Finding both legs and 208 V line to line made a missing-leg explanation less consistent with the evidence. The discussion then identified the power board as the next likely fault path.

A breaker reset was mentioned as a low-probability attempt, not a durable repair. No board replacement or completed heat test was reported.

What to preserve for the service call

  • Photograph the exact BAD LINE display.
  • Provide the complete model and serial number.
  • Note whether the error appears immediately or only during heating.
  • Report whether the property normally uses 208 V or 240 V service.
High-voltage safety: line-to-line range measurements can expose lethal voltage. The readings in this case are evidence, not homeowner instructions; supply and board testing require qualified service.

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