Windsor Sensor Blue Switch - SR12, SR18, S12, WI-532
On a Windsor Sensor the on/off switch is a foot-operated part, which means it absorbs a hard press thousands of times a year from a crew wearing work boots. It is one of the few components on these machines that reliably wears out, and when it does the vacuum either will not start or will not stay running. This is the blue replacement switch for the Sensor SR12, SR18 and S12 family, part WI-532.
Built for
- Windsor Sensor SR12 and SR18 commercial uprights
- Windsor Sensor S12 and Sensor XP machines
- Janitorial contractors and building services fleets
- In-house maintenance shops keeping Windsor machines running
- Any Sensor that will not start or cuts out when the pedal is pressed
Use cases
Fixing a machine that will not start. When a Sensor stops responding to the pedal, the switch is the first thing to check after the cord. The usual sequence is a switch that has to be pressed harder and harder, then one that only works if held, then nothing at all. Replacing it is a much smaller job than most operators expect.
Keeping a fleet machine in rotation. Windsor Sensors are bought to run nightly for years, and a dead switch takes a fully serviceable machine off the floor. For a contractor running several units, keeping a switch on the shelf means a failure is a ten-minute bench repair instead of a machine sitting idle waiting on a service call.
Replacing the wear parts together. The switch, the pedal and the holder work as a set, and on a machine old enough to need one they are often all worn. If the pedal is cracked or sloppy or the holder no longer positions the pedal squarely over the switch, replacing those at the same time prevents the new switch from failing early for the same reason the old one did.
Specifications
- Brand: Windsor replacement
- Part number: WI-532
- Component: on/off switch, blue
- Function: foot-pedal actuated power switch
- Fits: Windsor Sensor SR12, SR18 and S12
- Also fits: Sensor, Sensor XP, SRXP, SRXP-12, SR15, SR16, SR17, XP15, XP16, XP17, XP18
- Related components: switch pedal and pedal holder
Frequently asked questions
Which Windsor machines does this switch fit?
It fits the Windsor Sensor SR12, SR18 and S12, and the wider Sensor family including Sensor, Sensor XP, SRXP, SRXP-12, SR15, SR16, SR17, XP15, XP16, XP17 and XP18.
How do I know the switch is the problem and not the cord?
Check the cord first, since a broken conductor produces similar symptoms. If the machine has power at the cord and still will not start, or only runs while the pedal is held down or pressed unusually hard, the switch is the likely fault.
Do I need the pedal and holder as well?
Not necessarily, but they wear as a set. If the pedal is cracked or loose in its travel, or the holder no longer keeps the pedal square over the switch, replace them together - otherwise a misaligned pedal will wear out the new switch the same way.
Is this a repair a maintenance tech can do?
Yes. It is a routine bench repair involving the switch housing and its wiring connections. Unplug the machine before starting, and have a qualified technician do the work if you are not confident with line-voltage wiring.
Does the color of the switch matter?
The blue color matches the original Windsor Sensor switch trim. It is cosmetic and does not affect fit or function.
Discount Cleaning Products is an authorized dealer stocking genuine and OEM-equivalent replacement parts for commercial and household floor care equipment. Our US-based staff works with these machines every day, so if you are not certain which part your model takes, send us the model and serial number off the data plate and we will confirm the correct fit before you order.
