UV LED temperature error #10209 (SL1/SL1S)

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What happened?

The printer is displaying the message: Reading of UV LED temperature has failed! This value is essential for the UV LED's lifespan and printer safety. Please contact tech support! Current print job will be canceled.

Error name: UV LED temp. error

Error code: #10209

How to fix it?

Integrated to the UV LED PCB is a thermistor, to prevent overheating. It most likely indicates an issue with the LED PCB or the connection of it to the controller board. Try reseating the connector on the mainboard. If this does not resolve it, the UV LED must be replaced.

Guides

How to replace a UV LED assembly (SL1)