Cooling Fan Stop (Control Module) (ECM)

What does A mean?

The cooling fan for the heat sink of the Control Module has stopped. This can lead to overheating of the Control Module and reduced operating life of its components. Note that even if ECM works continuously, the cooling fan should be exchanged early.

• Current exceeds limits during regenerative braking.
• Excessive back EMF from the motor during deceleration.
• Braking resistor capacity is insufficient.
• Incorrect regeneration control parameters.

Click steps to track your progress.

1. 1

   Inspect the cooling fan of the Control Module for obstructions or mechanical failure.

2. 2

   Measure the voltage supply to the cooling fan to ensure it is receiving power.

3. 3

   Replace the cooling fan if it is not operating or is making abnormal noise.