CleanMax Nitro CMNR-QD Suction Pressure Relief Valve C283-2500
$2.99
Genuine Tacony C283-2500 suction pressure relief valve — protects the motor on the CleanMax, Carpet Pro, Fuller Brush, Simplicity, and Powr-Flite uprights it fits by bleeding in air when the bag fills or the airway clogs.
The Suction Pressure Relief Valve (part C283-2500) is a genuine Tacony OEM replacement part shared across multiple uprights — it fits CleanMax, Carpet Pro, Fuller Brush, Simplicity and Powr-Flite models. The full compatible-model list appears below.
This small safety component has an outsized job: protecting the motor. When the bag fills or the airway becomes blocked, suction inside the machine spikes and the motor is starved of cooling airflow. The relief valve opens under that vacuum to bleed in a controlled amount of air, keeping the motor within safe limits until the blockage is cleared.
A valve that has stiffened, stuck open, or lost its seal undermines that protection — a stuck-open valve steals everyday suction, while a stuck-closed one leaves the motor unprotected against overload. Replacing the inexpensive C283-2500 is cheap insurance for a much costlier motor.
Compatible Models
- CleanMax Nitro CMNR-QD
- Carpet Pro CPU-250
- Carpet Pro CPU-350
- Fuller Brush (FBEZM)
- Simplicity Clean Air Allergy Upright (S20EZM)
- Powr-Flite Upright (PV090-W12-U)
Frequently Asked Questions
Which vacuums does C283-2500 fit?
It fits CleanMax Nitro CMNR-QD, Carpet Pro CPU-250, Carpet Pro CPU-350, Fuller Brush (FBEZM), Simplicity Clean Air Allergy Upright (S20EZM) and Powr-Flite Upright (PV090-W12-U).
What does the suction relief valve do?
It bleeds a controlled amount of air into the machine when the bag fills or the airway clogs, protecting the motor from overload.
What happens if it fails?
Stuck open, it steals suction during normal use; stuck closed, it leaves the motor unprotected when airflow is blocked.
Is it worth replacing?
Yes — it is an inexpensive part that protects the far more expensive motor assembly.





