If your SonicWall Security Appliance has a hardware failure while still under warranty, SonicWall replaces it. In this case, you need to remove the HA association containing the failed Security Appliance in MySonicWall, and add a new HA association that includes the replacement. If you contact SonicWall Technical Support to arrange the replacement (known as an RMA), Support often takes care of this for you.
After replacing the failed Security Appliance in your equipment rack with the new unit, you can update MySonicWall and your SonicOS configuration.
Replacing a failed HA Primary unit is slightly different than replacing an HA Secondary unit. Both procedures are provided in these sections: