UMC family
UMC_a007_pcbaOT
Mobile Connector control box temperature high
What does the UMC_a007_pcbaOT alert mean?
UMC PCB temperature exceeded threshold
What you'll see in your Tesla
- Mobile Connector control box temperature high
- Let Mobile Connector cool to resume charging
What triggers it
UMC PCB temperature exceeded 100 C
When it clears
UMC PCB temperature has fallen below 98 C
Potential impact
UMC will not allow charging until the PCB cools off sufficiently
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.