We may have found other answers which could help you.
Click here for Rainbow Model Vacuum
HOW TO CHANGE RAINBOW POWER NOZZLE MOTOR [PN2E]?
How do I remove the on-off switch on a rainbow. The switch is on top?
Replacing damaged electric cord?
How do I wire a new switch to my Rainbow 4D SE Vacuum?
How to repair an 15 year old rainbow vacuum cleaner?
Is there a reset button on an E Series Rainbow Vacuum?