6 Signs of Load Cell Failure in a Truck Scale

Load cell failures usually do not happen suddenly. They develop gradually. A failure caught early can be resolved by replacing a single part, while a failure left unattended can lead to inaccurate weighing records and disputes.

1. The empty scale does not return to zero

If the indicator drifts away from zero or keeps moving when the platform is empty, moisture or internal damage may be present in one of the load cells.

2. Readings keep fluctuating

When the vehicle is stationary and the weight keeps rising and falling, this points to signal instability caused by the cable, the junction box, or the load cell.

3. Different results depending on the vehicle's position

If the same vehicle weighs differently at the front and at the rear of the platform, the corner balance has been disrupted. This is usually caused by a faulty load cell or mounting part.

4. Failure to return to the previous value after unloading

If the scale returns to zero slowly or not at all after a heavy weighing, an overloaded load cell may be the cause.

5. Problems that worsen after rain

Errors that become more noticeable in wet weather are a strong sign that water has entered the cable or the junction box.

6. No weighing after a lightning strike

If the scale stops weighing entirely after a thunderstorm, the load cells and indicator inputs may have been damaged by voltage surges.

If you notice any of these symptoms, we recommend having the scale inspected rather than continuing to use it. Each load cell can be tested individually, so the faulty part can be identified quickly.