However, that power comes through wires that run through the swivel and up to the vacuum’s main body. As we saw above, the headlights receive power through the floor attachment. That happens because there is a wiring problem inside your vacuum. That problem tends to happen more often when you’re turning the vacuum on its swivel, causing the lights to flash on and off repeatedly. That will free the brush roll, allowing it to turn normal again.Īs you push the vacuum around, you might find that the headlights flash intermittently. You can remove the rest with your fingers after you’ve cut most of the buildup. Do this very carefully, so you don’t accidentally cut the bristles from the brush bar. Then, use a pair of scissors to cut through the buildup of hair and dirt around the brush roll. You can start by disconnecting the floor attachment and turning it over. At some point, the same will wrap around the brush roll’s bearings and cause it to jam.Ī brush roll that can’t move freely will place added stress on its motor, which is why you must clear it as soon as you notice a problem. Unfortunately, hair strands and long pieces of dirt can wrap around the brush roll over an extended period. Its purpose is to help lift dirt off the ground, making it much easier for the vacuum to suck it in. The brush roll is cylindrical in shape with bristles along its sides. When that happens, the red light will flash to get your attention so you can free the brush roll and allow it to resume normal operations. Why it’s happening: Another likely trigger behind the red flashing indicator on your Shark vacuum is that its brush roll is jammed. Symptoms: Red-coloured indicator light flashing while the brush roll fails to turn. Read: Garage Vacuum Troubleshooting Guide #4 Jammed Brushroll Then, inspect all of its components for blockages that you must remove.ĭon’t forget to empty the canister, as too much dust in there will also restrict airflow. To solve this problem, you must first unplug your vacuum cleaner. A blockage prevents airflow from passing through the vacuum and reducing the heat inside, particularly around the motor. So, when you see the red indicator light flashing, and your vacuum won’t run, it’s likely that there’s a blockage inside that causes it to run too hot. When it senses that the vacuum is running too hot, it’ll cut the electrical circuit and force the appliance to turn off.īy doing that, the thermostat prevents the vacuum from damaging itself and protects you from more expensive repairs. There’s a thermostat inside your Shark vacuum that protects it from overheating. The appliance will also stop working as a protective measure, thanks to a protective device inside Why it’s happening: An overheating Shark vacuum cleaner can also trigger the red indicator light to flash. Symptoms: Red-colored indicator light flashing, as the vacuum stops working and the body feels hot around the motor. Read: Shark Vacuum Won’t Turn On #3 Overheating
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