Hall Sensor Idler Assembly D375-1400
$45.99
Genuine Tacony Hall Sensor Idler Assembly (part# D375-1400) — tensions the belt and senses brushroll rotation. Fits CleanMax CMPS-QDZ, Riccar R17, Simplicity F3700 and more. Call 763-535-0770.
The Hall Sensor Idler Assembly (part# D375-1400) is a genuine Tacony OEM part that tensions the drive belt and uses a Hall-effect sensor to monitor brushroll rotation. It is shared across CleanMax, Riccar and Simplicity uprights that use brushroll sensing.
Compatible Models for the Hall Sensor Idler Assembly
- CleanMax: CMPS-QDZ Pro Series, Zoom ZM-700
- Riccar: R10P, R10 (Sand), R17, RSL5
- Simplicity: F3700, F3700 (Sand), F3700C, S10P, S10 (Sand)
Not sure if this fits your machine? Call us at 763-535-0770 and we will confirm compatibility for you.
This assembly does two jobs: its idler pulley keeps the drive belt under proper tension, and its Hall-effect sensor detects whether the brushroll is turning so the machine can warn of a jam or broken belt. If the sensor fails, the vacuum may report a brushroll fault or shut the agitator down even when nothing is wrong.
Replace the assembly when the belt no longer holds tension, the idler bearing is noisy, or the machine flags a brushroll error that a good belt and clear roll do not explain. Renewing it restores both correct belt tension and accurate rotation sensing.
Twin City Vacuum has been selling and servicing CleanMax and Tacony floor-care equipment since 1956 and sources every part directly from Tacony.
Frequently Asked Questions
What does the D375-1400 Hall sensor idler assembly do?
It combines an idler pulley that tensions the drive belt with a Hall-effect sensor that detects brushroll rotation, so the machine can maintain belt tension and warn of a jam or broken belt.
Why would the vacuum report a brushroll fault with a good belt?
A failed Hall sensor in the D375-1400 assembly can misread brushroll rotation and trigger a fault or shut down the agitator even when the belt and roll are fine, which means the sensor assembly needs replacing.
Does the D375-1400 include both the idler pulley and the sensor?
Yes — it is a combined assembly with the tensioning idler and the Hall-effect rotation sensor, so replacing it renews both functions at once.
How do I order the Hall Sensor Idler Assembly (part# D375-1400) or get help?
You can add the Hall Sensor Idler Assembly (part# D375-1400) 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, Riccar and Simplicity equipment since 1956 and can help confirm the right part.
Questions? Call us at 763-535-0770 or visit us at 5415 West Broadway, Crystal, MN 55428.





