Two Speed Switch A328-1700
$3.99
Genuine Tacony OEM two-speed rocker switch (part# A328-1700) — toggles the vacuum motor between high and low suction speed. Fits CleanMax ZM-500/ZM-700, Riccar R10 series, Simplicity S10, and Maytag M500. In stock, ships from Crystal, MN. Call 763-535-0770.
The Two Speed Switch (part# A328-1700) is a genuine Tacony OEM two-speed rocker switch for ultralight upright vacuums — it fits CleanMax ZM-500/ZM-700, Riccar R10 series, Simplicity S10, and Maytag M500. It is the control on the corded commercial upright that lets the operator select between two motor speeds. It gives the machine a high setting for aggressive carpet cleaning and a lower setting for quieter, motor-saving operation or delicate surfaces.
Compatible Models for the Two Speed Switch A328-1700
CleanMax rebadges the Riccar and Simplicity ultralight uprights, so this two-speed switch is shared across the whole family:
- CleanMax: ZM-500, ZM-700 (corded commercial uprights)
- Riccar: R10D, R10P, R10S, R10S.2, R10S.4, R10SAND, R17
- Simplicity: S10D, S10P, S10S, S10SAND
- Maytag: M500 (TV280-W12-U)
This is a genuine Tacony OEM part for the CleanMax ZM-500 and ZM-700 corded commercial uprights. Call 763-535-0770 if you are unsure which model you have and we will confirm the correct part before you order.
What the ZM-500/ZM-700 Two Speed Switch does
The two-speed switch signals the control system to run the motor at one of two speeds, so the operator can match power to the task — full speed for heavily soiled commercial carpet, reduced speed to conserve motor run time, lower noise, or work on lighter surfaces. It is pressed or toggled many times a shift, so its contacts and mechanism wear. A genuine switch is matched to the machine’s control circuit so both speeds select reliably.
Signs the ZM-500/ZM-700 Two Speed Switch needs replacing
Replace the switch if one speed no longer selects, if the machine will not change speeds, if the switch feels loose, sticky, or intermittent, or if it shows scorching at the terminals. A switch that only works when wiggled, or that has stuck on one speed, has failed and should be replaced.
Installation and fit
Power down and isolate the motor. Note the terminal wiring, transfer the leads one at a time to the new two-speed switch so nothing is mis-wired, seat it in its opening, and confirm both speeds select correctly. Twin City Vacuum has sold and serviced CleanMax equipment since 1956, and every part is sourced directly from Tacony. Browse more CleanMax parts, or learn more at CleanMax.
Frequently Asked Questions
What does the Two Speed Switch do on the CleanMax ZM-500 and ZM-700?
It lets the operator select between two motor speeds — a high setting for aggressive carpet cleaning and a lower setting for quieter, motor-saving, or delicate-surface work.
How do I know if my ZM-500/ZM-700 Two Speed Switch needs replacing?
Replace it if one speed will not select, the machine will not change speeds, or the switch feels loose, sticky, or intermittent, or shows scorching at the terminals.
What models is the Two Speed Switch (part# A328-1700) compatible with?
It fits the CleanMax ZM-500 and ZM-700, Riccar R10D/R10P/R10S/R10S.2/R10S.4/R10SAND/R17, Simplicity S10D/S10P/S10S/S10SAND, and Maytag M500 (TV280-W12-U). Call 763-535-0770 to confirm fit for your machine.
How do I order the Two Speed Switch (part# A328-1700) or get help?
You can add the Two Speed Switch (part# A328-1700) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing CleanMax equipment since 1956 and can help confirm the right part for your machine.
Questions? Call us at 763-535-0770 or visit 5415 West Broadway, Crystal, MN 55428.




