Rainbow shuts down. After 10 minutes it starts and shuts down again.
Last Updated: 05/28/2009
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Problem:
My Rainbow vacuum just would stop working. After 10 or 15 minutes it would start again and work for a few minutes more and then shuts off again. |
Possible Causes:
Most likely cause is Rainbow motor thermal cut-off switch (thermal fuse). |
Suggested Solutions :
Do not forget to inspect the electric outlet and the cord. The most common cause is a thermal fuse - read below: |
Disclaimer:
Goodvac.com is not affiliated with The Rexair, Inc.(Rainbow vacuum cleaner manufacturer). All manuals and maintenance tips for Rainbow vacuum cleaners and repair manuals for Rainbow model vacuums are authored by GoodVac.com and are not endorsed or approved by the Rainbow vacuum manufacturer - Rexair, Inc. These materials should be only used at your own discretion and risk.
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Possible causes and solutions
Assuming that you do not smell anything burning and no smoke is coming out of the Rainbow vacuum, then the most common cause is a faulty thermal fuse. Rainbow vacuums have a thermal Cut-Off switch in the motor.
It is soldered on the field covered with protective sleeve and strapped with a cable tie.
Replacing it usually solves the problem, however, keep in mind that it just may be serving its purpose and saving the Rainbow vacuum field and armature from overheating because something else is wrong (excessive sparking between commutator and carbon motor brushes, problem in the fan system or insufficient motor cooling). So if Rainbow sounds different than it used to, there is something wrong with suction or you smell like something is burning – STOP. Replacing thermal switch would not help.
Thermal Fuse can be purchased HERE (replacing requires fairly advanced skills).
Rainbow D4 and SE models - you are very likely to damage MOTOR GASKET when trying to access the motor.
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