Porter-Cable 382 troubleshooting

If the sander is no longer sanding the surface but seems to be otherwise functioning normally, it is time for a new piece of sandpaper.

If the sander is no longer smoothing out surfaces, and the sander pad is spinning at a normal rate of speed there is a probability that your sandpaper is no good and needs to be changed. This occurs after continuous use of the sander on hard rough surfaces eventually breaking down the grain of the sandpaper. Please refer to this sandpaper replacement guide.

If you are trying to smooth out a really rough surface it is recommended to start at a lower grit, for example 80 grit, and to work your way up to a higher one like 220 grit. If you start at too high of a grit it will take much longer to sand and take more sandpaper sheets than necessary.

This model uses a hook and loop (Velcro) system that requires its surface to be debris free and undamaged to work properly.

If the sandpaper no longer sticks to the surface of the sander pad there is a high chance the sander pads hook and loop (Velcro) system isn't working due to debris buildup. Check the pad and try to clean the Velcro with an air compressor or brush. If the paper is still not sticking it is time for a new pad.

If the sander pad has been worn down due to over use, and there is visible damage to the sander pad then the sand paper will no longer stick to the pad. This because the sander pad is worn down unevenly past the Velcro that is needed to attach the sand paper. If this is the case the sander pad needs to be replaced, please refer to the sander pad replacement guide. ( When replacing the Sander pad it is also recommended to replace the Dust Seal/ Break)

This model uses a spinning fan to create a vacuum to suck up dust through holes on the sander pad, if the fan fails or the collection bag is full or clogged this function will not work.

If the fan is beginning to make an unfamiliar sound, i.e clunking or smashing, then there is a high possibility it is either broken or something is stuck inside the fan. Remove the sander pad and check the fan for debris, If nothing seems to be jamming the fan it may be time for a new one. Please refer to this fan replacement guide.

If the fan is clear, remove the portable dust collector or vacuum to see if either are clogged with debris. If they are, remove debris and your problem will be solved.

If the dust collector is full, empty it! While this is full the fan will not be able to create a strong enough vacuum due to lack of air flow and the dust will not be picked up.

If the sander is not turning on something is wrong with the circuitry, this model does not have a fuse so that is not the problem.

If the sander no longer operates while being plugged in their is a high chance the cord of the sander is frayed or broken. If their is visual wires apply electrical tape and retry the sander. If that fails a replacement wire will be needed for the sander.

If you have too many devices operating on the same power supply and too much voltage is pulled out, a breaker will trip in order to protect electrical components. Unplug your device and check your breaker box and flip the switch if it has been tripped.

If the sander stays off after trying to turn it on multiple times, or no longer turning off without pulling the cord from the wall then your On/Off switch may be broken. Please refer to this On/Off switch replacement guide.

This model contains a Dust Seal/ Break which regulates RPM's and keeps dust out of the motor. It also contains bearings that may wear out and cause issues with the sanders orbit.

If the oscillation bearing freezes up there is a high probability your sander is leaving circular sanding scars on the surface you are sanding. If this begins to occur you will need to open up the sander and review the motor.

If your device is orbiting at higher than normal RPM, it's time to replace your Dust Seal/ Break. To do so remove the sander pad and take a look at the Dust Seal/ Break, if it is damaged it needs to be replaced. Please refer to this Dust Seal/ Break replacement guide.