--- title: Puff - How do you solve the error message “A08 board temperature alarm”? description: A08 High board temperature alarm warns that PCB temperature exceeded 75°C/167°F.  The appliance will stop any activity; switch off and let cool down the unit.  This message does not necessarily requir --- [Skip to content](https://support.lainox.com/en/knowledge/puff-how-do-you-solve-the-error-message-a08-board-temperature-alarm#main-content) - [English](https://support.lainox.com/en/knowledge/puff-how-do-you-solve-the-error-message-a08-board-temperature-alarm) - [Deutsch](https://support.lainox.com/de/knowledge/puff-wie-löst-man-das-problem-der-fehlermeldung-a08-alarm-temperatur-platine) - [Español](https://support.lainox.com/es/knowledge/puff-cómo-resolver-el-mensaje-de-error-a08-alarma-temperatura-tarjeta) - [Français](https://support.lainox.com/fr/knowledge/puff-comment-résoudre-le-message-derreur-a08-alarme-température-de-la-carte) - [Italiano](https://support.lainox.com/knowledge/puff-come-risolvere-messaggio-derrore-a08-allarme-temperatura-scheda) English Show submenu for translations ![LAINOX bianco 500.png\]](https://support.lainox.com/hs-fs/hubfs/LAINOX%20bianco%20500.png?height=40&name=LAINOX%20bianco%20500.png) Open main navigation Close main navigation - - [English](https://support.lainox.com/en/knowledge/puff-how-do-you-solve-the-error-message-a08-board-temperature-alarm) - [Deutsch](https://support.lainox.com/de/knowledge/puff-wie-löst-man-das-problem-der-fehlermeldung-a08-alarm-temperatur-platine) - [Español](https://support.lainox.com/es/knowledge/puff-cómo-resolver-el-mensaje-de-error-a08-alarma-temperatura-tarjeta) - [Français](https://support.lainox.com/fr/knowledge/puff-comment-résoudre-le-message-derreur-a08-alarme-température-de-la-carte) - [Italiano](https://support.lainox.com/knowledge/puff-come-risolvere-messaggio-derrore-a08-allarme-temperatura-scheda) English Show submenu for translations - [Go to Lainox.com](https://www.lainox.com/) [Go to Lainox.com](https://www.lainox.com/) Lainox Support - There are no suggestions because the search field is empty. 1. [Home](https://support.lainox.com/en/knowledge) 2. [Puff](https://support.lainox.com/en/knowledge/puff) 3. [Messages](https://support.lainox.com/en/knowledge/puff#messages) # Puff - How do you solve the error message “A08 board temperature alarm”? A08 High board temperature alarm warns that PCB temperature exceeded 75°C/167°F.  The appliance will stop any activity; switch off and let cool down the unit.  **This message does not necessarily require the intervention of a technician; the causes of the failure can be external.** ### Description Temperature sensor on PCB detect a temperature over the maximum allowed temperature. ### Warning Check cooling fans and proper air flow ### Reset  Message cannot be confirmet; switch off the unit and wait for cooling down. Remove root cause of overtheating ### Checks Perform following checks:  \- Check correct installation of the appliance (ventilation and nearby heat sources)  \- Check gasket and door tightness  \- Check that the cooling fans are working properly and that the flows are correct.  \- Check probe on pcb. - [Naboo](https://support.lainox.com/en/knowledge/naboo#main-content) - [Installation](https://support.lainox.com/en/knowledge/naboo#installation) - [Use](https://support.lainox.com/en/knowledge/naboo#use) - [Messages](https://support.lainox.com/en/knowledge/naboo#messages) - [How to](https://support.lainox.com/en/knowledge/naboo#how-to) - [How it works](https://support.lainox.com/en/knowledge/naboo#how-it-works) - [Sapiens](https://support.lainox.com/en/knowledge/sapiens#main-content) - [Installation](https://support.lainox.com/en/knowledge/sapiens#installation) - [Use](https://support.lainox.com/en/knowledge/sapiens#use) - [Messages](https://support.lainox.com/en/knowledge/sapiens#messages) - [How to](https://support.lainox.com/en/knowledge/sapiens#how-to) - [How it works](https://support.lainox.com/en/knowledge/sapiens#how-it-works) - [Neo24hours](https://support.lainox.com/en/knowledge/neo24hours#main-content) - [Installation](https://support.lainox.com/en/knowledge/neo24hours#installation) - [Use](https://support.lainox.com/en/knowledge/neo24hours#use) - [Messages](https://support.lainox.com/en/knowledge/neo24hours#messages) - [How to](https://support.lainox.com/en/knowledge/neo24hours#how-to) - [How it works](https://support.lainox.com/en/knowledge/neo24hours#how-it-works) - [Oracle](https://support.lainox.com/en/knowledge/oracle#main-content) - [Installation](https://support.lainox.com/en/knowledge/oracle#installation) - [Use](https://support.lainox.com/en/knowledge/oracle#use) - [Messages](https://support.lainox.com/en/knowledge/oracle#messages) - [How to](https://support.lainox.com/en/knowledge/oracle#how-to) - [How it works](https://support.lainox.com/en/knowledge/oracle#how-it-works) - [Puff](https://support.lainox.com/en/knowledge/puff#main-content) - [Installation](https://support.lainox.com/en/knowledge/puff#installation) - [Use](https://support.lainox.com/en/knowledge/puff#use) - [Messages](https://support.lainox.com/en/knowledge/puff#messages) - [How to](https://support.lainox.com/en/knowledge/puff#how-to) - [How it works](https://support.lainox.com/en/knowledge/puff#how-it-works) - [Zoom](https://support.lainox.com/en/knowledge/zoom#main-content) - [Installation](https://support.lainox.com/en/knowledge/zoom#installation) - [Use](https://support.lainox.com/en/knowledge/zoom#use) - [Messages](https://support.lainox.com/en/knowledge/zoom#messages) - [How to](https://support.lainox.com/en/knowledge/zoom#how-to) - [How it works](https://support.lainox.com/en/knowledge/zoom#how-it-works) [![Chill listening crop-3](https://support.lainox.com/hs-fs/hubfs/LAINOX-1.png?width=88&height=24&name=LAINOX-1.png "Chill listening crop-3")](https://lainox.com/) Copyright © 2026, LAINOX Ali Group S.r.l. a Socio Unico