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How to solve Error Code 42

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发表于 2025-10-31 17:47 | View All 阅读模式

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Fault code:【42】The serial number is not set at the factoryReason:1. Production process oversight: Some production processes may not have written the serial number into the equipment, resulting in it not being set at the factory.  2. Equipment design limitations: Some low-power or basic inverters may not have reserved serial number writing functionality.  Solution:1. Contact the manufacturer's technical support: Obtain the device serial number or reset it through official after-sales channels.  2. Check device labels: Some devices may be labeled with a unique identification code on the body or packaging box, which can be used as an alternative solution.  3. Upgrade firmware: Some models support automatic generation of serial numbers through system updates.  It is recommended to prioritize contacting the equipment manufacturer to confirm specific solutions, in order to avoid self disassembly and equipment damage.Note: Please do not dismantle the machine without permission, otherwise it will be out of the warranty of Ktech.
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