Brush Roll Assembly - Rainbow D3A, D3C, D4C, D4C SE Power Nozzle ZM-800 It is formulated to dissolve

It is formulated to dissolve and lift rust stains from carpet

a failing thermal switch is a likely cause

it produces the machine's suction and drives the brush through its belt

Benefit: handles grooming

Function: rotating armature that generates suction

Brush Roll Assembly - Rainbow D3A, D3C, D4C, D4C SE Power Nozzle ZM-800 It is formulated to dissolveThis replacement brush roll assembly (Part #RX201) fits Rexair Rainbow power nozzles, including the R 2800C (1650) and D4C SE (R 4375C). It measures about 13 inches from end cap to the end of the pulley. Bristles wear down and shorten with use, and a worn brush roll can no longer reach into carpet pile to lift dirt and pet hair. Hair also wraps the shaft and strains the belt. A fresh brush roll restores agitation and even carpet grooming. Fits: