225-Degree Limit Switch - Heat Smart SSF1500/SSG1500 Heater CFP and the motor works harder

and the motor works harder to move air

Worn carbon brushes announce themselves with sparking at the motor

A fresh brush roll restores full agitation

Filtration: self-sealing HEPA media bag

or let the roll drift and bind

225-Degree Limit Switch - Heat Smart SSF1500/SSG1500 Heater CFP and the motor works harderThis replacement 225 degree limit switch (Part #SSF107) fits the Heat Smart SSF1500 and SSG1500 heaters. The switch is a thermal cutoff that interrupts power if the unit reaches its temperature limit. A limit switch that has failed can shut the heater down early or stop cutting power when it should, which affects both operation and safety. A correct replacement restores the proper thermal cutoff and reliable on and off behavior. Fits: Heat Smart