The disc filter sitting behind the cone in a FilterQueen is the last thing standing between fine dust and the motor. This secondary paper disc filter, also called the motor guard, is the inexpensive part that protects the expensive one. FilterQueen owners and the technicians who service them replace it on a six-month cycle because a loaded disc chokes airflow, makes the machine run hot, and shortens motor life long before anything else in the unit wears out.
Built for these use cases
- Scheduled six-month filter service on a FilterQueen surface cleaner
- Restoring airflow on a unit that has lost suction after heavy use
- Protecting the motor after cleaning up fine dust from remodeling or drywall work
- Bundling with cone filter changes so the whole filtration path is refreshed at once
- Keeping a serviced or resold FilterQueen running to spec before handing it over
Fit and compatibility
FilterQueen surface cleaners run a two-stage filtration path: the cone filter does the primary work, and a secondary paper disc sits behind it as the motor guard. This is that secondary disc, also catalogued as the flat disc filter or motor guard and cross-referenced to part 1404000600. If you open your machine and find only a cone with no disc behind it, either the disc was omitted at the last service or your model uses a different guard arrangement, and it is worth confirming against the manual for your specific unit before ordering. The disc is not interchangeable with the cone filter and does not replace it.
Specifications
- Filter type: Secondary paper disc filter, motor guard
- Position: Installs behind the cone filter, ahead of the motor
- Also referenced as: Flat disc filter, motor guard filter, part 1404000600
- Recommended change interval: Every 6 months
- Material: Pleated paper media disc
Installation and care
- Unplug the unit and remove the cone filter first to reach the disc behind it.
- Note which way the used disc is facing before removing it, then discard it rather than trying to clean it.
- Wipe the seat clean so the new disc lies flat with no gap around the edge.
- Reinstall the cone filter and confirm the housing closes fully without forcing it.
- Record the date so the six-month replacement stays on schedule.
Technicians who service these machines consistently report the same failure pattern: a skipped disc filter leads to fine dust in the motor housing, then bearing noise, then a motor replacement that costs many times what the filter would have.
Frequently asked questions
What does the secondary disc filter actually do?
It sits behind the cone filter and acts as a motor guard. Anything fine enough to pass the cone is caught here instead of being pulled through the motor.
How often should it be replaced?
Every six months is the standard recommendation. If you have been cleaning up construction dust, fireplace ash or similar fine material, change it sooner.
Does this replace the cone filter?
No. The cone filter is the primary media and is changed on its own schedule. The disc filter is the secondary stage behind it, and both should be kept current.
Can I vacuum it off and put it back in?
It is not designed for cleaning and reuse. Paper media loses its structure once it is loaded, so replacement is the reliable option.
What happens if I skip it?
Airflow drops, the motor runs hotter than it should, and fine dust reaches the motor bearings and windings. That is the sequence that turns a low-cost filter change into a motor replacement.
Discount Cleaning Products is an authorized dealer with US-based support, and we stock the replacement parts and consumables that keep commercial cleaning equipment in service rather than in a corner. If you are not certain this is the right part for your machine, send us the model and serial number and our team will confirm the fit before you order.
