The scale read low, so changed the battery. now nothing at all. Does it need to be turned on or reset somehow?

If your Seca 813 is only showing the "STEP OFF" and "STOP" messages and is not responding to any commands, it is possible that there is a problem with the scale's sensors or the internal circuitry. Here are some steps you can take to troubleshoot the issue:

1. Make sure that the scale is on a flat and stable surface. If the scale is on an uneven surface or is wobbling, it may not be able to take accurate readings and could display error messages.
2. Check the scale's batteries. If the batteries are low, this could cause the scale to malfunction. Replace the batteries with fresh ones and try turning the scale on again.
3. Reset the scale. Some scales have a reset button or function that can be used to clear any errors or malfunctions. Refer to the user manual for instructions on how to reset your specific model of scale.
4. Check the scale's sensors. Over time, the sensors on a scale can become dirty or worn, which can affect their accuracy. Clean the sensors with a soft cloth or brush and see if this resolves the issue.
5. If none of the above steps work, you may need to contact Seca support or a professional technician for further assistance. They may be able to diagnose the issue and recommend a repair or replacement if necessary.

When the scale says Lo/Low this means the batteries must be changed as there is low power that is not sufficient enough for it to operate properly. How to Change the Scale Batteries: ... Remove the battery cover on the back. Remove the batteries and replace them with new once.

I was surprised to learn that SOME digital scales are VERY particular about the batteries users install! (I-KNOW!)

LOOK CLOSELY to see what battery your scale specifies.

Please let us know how this works for you?

Anthony

"unk"

you most probably need to reset scale to factory settings, as you did not give what model and manufacturer, therefore you need to find your manual or google on line howto reset your scale

do not forget to vote...

Your body composition can change throughout the day reading differently in these types of scales. Eating, working out, or different times of the day will all change your results. Try using it in the morning only and on an empty stomach.

Have u got a reset button on the back of it maybe a little tiny button try pressing this it may need to calibrate itself

ensure the battery contacts are clean, if they are corroded it wont work. You may have to buy a contact cleaning spray or brush to do it.

The following reset procedure is used when the scale shows an err2, err, 0.0, inaccurate weight, or some other unusual error.

1. Remove the battery from the scale.
2. Sit the scale on a hard surface floor.
3. Step up onto the scale, stand still for about 5 seconds and step off the scale.
4. Re-install your battery.
5. Place the scale back on a hard surface floor.
6. With one foot only, place just enough weight on the scale for the display shows zero’s or dashes. Once you see zeros or dashes remove your foot.
7. Wait for the scale to turn off again.
8. Step up onto the scale for a weight.

If the reset is successful, you should receive a weight right away. If you continue to receive one of the error messages above please call our Customer Service department or contact us via email. You can also try the reset procedure a 2nd time. Sometimes the reset procedure will work the second time.