# XY Center Different than Calibrated

This error normally occurs the first time you use the V-One. It indicates the XY switches are not where the V-One is expecting them. There are two common causes:

* The probe or dispenser are not mounted properly
* The calibration has shifted slightly during shipping

To resolve this issue, follow the procedure below:

1. Remove, then re-mount the dispenser or probe. Inspect the magnets and ensure there is no metal debris stuck, and there is no air gap between the plastic and the chrome shafts.

![](//images.ctfassets.net/e6vf9wdhbae5/oz6fJyM7bEyQ3L0ibPWxL/0bebf010369adfd27263cf03f47b7eb3/probe-placement.gif)

Try performing an **Outline**, if the error persists:

1. Open the console with **Alt + C**. (The console allows to send commands directly to the printer.)
2. Home the machine (**Alt + H**) and ensure the probe is mounted.
3. Paste and enter the following command in the console: **I2 D2;**

![](//images.ctfassets.net/e6vf9wdhbae5/6JXLwdLpkMVgLKwo1hAN6A/643a65caecf0677039470d19e38ce0e8/Screenshot_2.png)

The V-One will perform a calibration procedure and make contact with the limit switches multiple times. When complete, the **LED lights will flash white** to indicate V-One's XY reference is now re-calibrated.

The **I2 D2** calibration resolves majority of cases, but if the error persists, email <support@voltera.io>, or message in the in-app chat.


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