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Fault codes / Ground Control / Bad Calibration

Ground Control: Bad Calibration

What it means: Sensor calibration out of range.

What to check

Replace the controller.

Learn the system

Practice it on a service call

Guided diagnosis

Other Ground Control codes

Full field guide: Lippert Ground Control 3.0 leveling

Codes come from the maker manuals and public service sheets. Your model's own chart always wins, and LP and 120 volt work belongs to a qualified technician.