Paper Shredders error codes, explained
Fellowes Powershred and similar office shredders. Codes below: Jams, overheating, oiling, sensors. Each guide covers what the code means, what you can safely try yourself, when to stop and call a technician, and what the repair typically costs.
Shredder jammed — the right way out
Fellowes' official procedure: press and hold Reverse for 2–3 seconds and gently pull the uncut portion of the paper out. Still stuck? Slowly alternate Reverse and Auto-Forward in 2–3 second pulses to walk the wad out of the cutters. If hands are going anywhere near the throat: power off, unplug, and use tweezers — never fingers (the cutters don't care what they're cutting).
Shredder stopped and won't restart — thermal cool-down
Per Fellowes, every one of their shredders has thermal overload protection: exceed the duty cycle and the motor shuts down until it cools. The numbers are model-specific — small personal units run ~5 minutes before needing ~15+, the office-grade 79Ci is documented at 20 minutes run / 30 minutes cool-down. Fellowes explicitly says to wait the FULL recommended cool-down even if it'll switch on sooner — restarting hot shortens motor life.
Shredder oiling: the maintenance nobody does (and the WD-40 warning)
Fellowes' official guidance: oil a cross-cut shredder every time you empty the bin (occasional users: every couple of months; micro-cut: more often). The method is theirs verbatim: hold Reverse, squeeze oil across the entire paper entry, keep holding Reverse another 10 seconds to spread it. And the warning that should be printed in red: only vegetable-based, non-aerosol shredder oil. Fellowes states aerosol oils are petroleum-based and 'can be a serious fire hazard' — that means WD-40 in a shredder is not a hack, it's a hazard. Cooking oil gums and goes rancid; the purpose-made stuff costs a few dollars.
Shredder starts by itself or won't auto-start — clean the sensors
Straight from Fellowes support: the auto-start sensors (two small 'glass bead' sensors in the paper-entry throat) get coated with paper dust or oil and falsely detect paper — making the shredder run continuously with nothing in it. The same grime in reverse makes it ignore real paper. Fellowes' fix and their confidence level, quoted: a cotton swab dampened with rubbing alcohol, several passes — 'almost all of the time, this procedure will solve the problem.'