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January 27, 2021 Service bulletin

Transit bus hvac software update as the vendor found a bug inwhich the heater could run with out running...

Proterra technical service bulletin SC-21-002 for 2019-2020 Proterra Catalyst and 2019-2020 Proterra ZX5.

Bulletin number
SC-21-002 (SC-21-002)
Component
Electrical system
Summary
Transit bus hvac software update as the vendor found a bug inwhich the heater could run with out running the fan tripping the heating safety switch fault.

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