11 | P a g e
12. Electrical troubleshooting
A. Motor will not turn on – Headlight LED’s flashing.
Jump Start Protection feature – ensure switch is in the off position prior to plugging unit in. Reset
switch by turning it off then on again.
A hall sensor located in the LED PCB senses the magnet in the brushroll body while it’s rotating to
act as a stall protection. If the headlight is flashing check the following:
1. Brushroll not in unit.
2. Belt broken.
3. Magnet in brushroll missing or covered with debris.
4. Brushroll jammed / failed.
5. LED PCB failed.
B. Motor will not run – Headlight LED’s not flashing.
1. Check for continuity between the wide blade of the attachment cord and the white connection
terminal on the circuit board. This will show continuity regardless of the switch position.
2. Check for continuity between the narrow blade on the attachment cord and the black
connection terminal on the circuit board. This will show continuity regardless of the switch
position.
3. Check for continuity between the narrow blade on the attachment cord and the yellow
connection terminal on the circuit board. Place the switch in the second (high) setting. This will
show continuity.
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