---
title: Leister VARIMAT V2 Error Code Definitions
description: Leister VARIMAT V2 error codes and definitions of each.
---

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# Leister VARIMAT V2 Error Code Definitions

If a malfunction occurs with your [Leister VARIMAT V2](http://www.hy-techroof.com/leister-varimat-v2) automatic hot-air welding machine, a message will appear on the **display (5)**. The error will include an icon, error code and in the event of a serious error, an acoustic warning signal will sound.

Following are error code definitions to help diagnosing issues, and to identify when you need to contact an [authorized Leister service center](https://resources.hy-techroof.com/hy-tech-products-service-centers).

| **Error** | **Type of error** |
| --- | --- |
| Err01 | Interruption or short circuit of the temperature probe. |
| Err02 | Heating element defective (interruption in one/both winding(s)). |
| Err04 | Triac defective (one or both triacs are defective). |
| Err08 | Blower motor defective. |
| Err40 | Undervoltage 25% (mains voltage 75%) |

If the set / actual welding temperature differ is greater than 20°C, then an acoustic warning signal will sound.

If you don’t encounter an error, contact your Leister authorized service center. They can advise you on potential fixes and next steps. 

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