Motor Over Temperature
Motor temperature exceeds safe operating limit (typically >100°C)
What it means
Motor temperature exceeds safe operating limit (typically >100°C)
Warning — Monitor the situation, may self-resolve.
Likely causes
- Extended high-power riding
- Hot ambient conditions
- Blocked cooling airflow
- Motor bearing wear
What to do
- 1Reduce power demand and let motor cool
- 2Check for debris blocking motor cooling fins
- 3Avoid sustained high-torque riding in hot weather
- 4If frequent, have dealer inspect motor
Which bikes use this table
Recorded in the binary log rather than shown on the dash — every generation writes them.
Related codes
Other log file Thermal codes:
Dashboard codes for the same subsystem:
Questions
What does "Motor Over Temperature" mean in a Zero log?
Motor temperature exceeds safe operating limit (typically >100°C). It is written by the MBB. It is classed as warning: monitor the situation, may self-resolve.
What should I do about it?
Reduce power demand and let motor cool. Check for debris blocking motor cooling fins. Avoid sustained high-torque riding in hot weather. If frequent, have dealer inspect motor.
See when this actually happened on your bike
A dash code tells you the fault; the log tells you the pack temperature, the state of charge and the ten minutes leading up to it.
Sources:
Community reference: ZeroManual wiki entry
The code and its name are transcribed from Zero's own owner manuals; the severity, category and troubleshooting notes are ours. For official diagnostics, consult an authorized Zero Motorcycles dealer.