E12
Philips
Motor Drive Circuit Fault
Cordless vacuum shows E12 and suction motor does not start, but lights and display work
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Open or shorted main suction motor, Burnt motor driver MOSFETs on main PCB, Loose motor connector, Blown internal fuse on control board
How to Fix / Troubleshooting
Safety first: Remove the battery or ensure the vacuum is switched off before opening any covers. Do not bypass fuses or short components.
- Step 1 – Listen for motor: When you press the power button, listen closely. If there is no motor sound at all, proceed with checks.
- Step 2 – Check for obstructions: Ensure the motor is not mechanically jammed by foreign objects in the fan area (only if accessible without fully disassembling).
- Step 3 – Inspect connectors: If you are comfortable removing the outer shell (following the service manual), check that the motor connector is firmly seated on the main PCB.
- Step 4 – Smell test: If you notice a burnt smell near the motor or PCB, the motor or driver components are likely damaged.
- Step 5 – Replace components: In most cases, the entire motor assembly or main PCB must be replaced rather than repaired at component level. This is a level‑4 repair and is best handled by a Philips service center.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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