Question about Rainbow Technologies D4 Bagless Vacuum

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Rainbow motor only humming..

My Rainbow made a popping sound,smelled like it was burning and now the motor only hums. I can not figure out how to take te canister apart....HELP PLEASE

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It sounds like the brushes went out.

Posted on Jul 30, 2009

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Tell your vacuum shop.

Posted on Jun 29, 2009

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1 Answer

The rainbow sat for too long on the water now wont run


So depending on how long, you may have rusted out the bearings in your motor, especially if it sat so long as to eat the glue off of your gasket.
Sounds like you may need a new motor, gasket, baffle plate and separator.

Rainbow series vacuum main unit parts

GoodVac.com
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Apr 14, 2014 | Rainbow E series Canister Wet/Dry Vacuum

3 Answers

Burning smell


The response by Lynnette is in reference to the power nozzle....if you are having this issue with the main unit, then it could be the armature is starting to go bad. Have your Rainbow in front of you and give us a call. We can walk you through some steps to narrow it down.

www.rainvac.com
800-523-0510

Apr 09, 2014 | Rainbow E series Canister Wet/Dry Vacuum

1 Answer

My miele s571 hoover is humming from a normal sound to a real low hum sound and their is a smell of burning it even through my smoke alarms off what would be wrong or is it worth fixing


It could just be a slipping belt, hair and lint get under the belt and make it stretch the it slips and the spinning drive post heats it up until it starts burning.

Jun 14, 2010 | Miele S318 Bagged Canister Vacuum

1 Answer

IT WILL NOT START - IT TRIES BUT DOES NOT TURN ON.


Unplug the vac and spin the acorn nut on the separator in the water reservoir. If it spins freely and this vac has run for a few years you may need a fresh set of motor brushes. Do not attempt to run the vac if the motor hums or makes a burning smell. Worn brushes are normal and can often be replaced in an older Rainbow/ Rexair

Sep 28, 2009 | Rainbow E series Canister Wet/Dry Vacuum

3 Answers

Rainbow Vacuum smells like something is burning.


Your belt is worn and that is why there is a burnt rubber smell. You need to change your belt. You can find a replacement belt and instructions here:

Rainbow Replacement Belts

Apr 02, 2009 | Rainbow E series Canister Wet/Dry Vacuum

1 Answer

Rainbow will not come back on


Bad idea.... I think the foam got through the separator and into the fan system. When it dried it hardened and now it need to be taken apart and cleaned.

Turn it on for less than 1 sec and if you hear motor making humming sound - it is ALIVE and cleaning (maybe new fan blades too) may be all that it needs. If no sound at all it may be KAPUT. You must have smelled something burning when you turned on and it did not work.

for D4 and SE models - When cleaning I would recommend to replace bearings as they are not that expensive and if you took it apart - maybe a good idea to replace them. Also you probably will need a new gasket as when taking old one off (it is glued) it may rip apart.

For e-series - you will need a new HEPA filter.

(parts HERE)

For Parts see

Mar 03, 2009 | Rainbow E series Canister Wet/Dry Vacuum

1 Answer

Rainbow E series


The belt looses it tensile strength (tightness) over time. But it's the part about funny sounds and shutting down that concerns me. If it smells like a tire fire then it's the belt if it smells like plastic and burned hair then the motor has a bad field or armature. Probably one of the carbon brushes got hung up and burned a segment in the armature.

Oct 02, 2008 | Rainbow E series Canister Wet/Dry Vacuum

1 Answer

Burning Smell


Check the carbon motor brushes, there might be arcing on the armature. New brushes may help if the armature is ok.

Mar 29, 2008 | Rainbow E series Canister Wet/Dry Vacuum

3 Answers

Rainbow Vacuum Cleaner starts slow smells hot


Sounds like the motor is going bad and will eventually not start. I am in the process of changing the motor in mine too and they are not cheap. just search around for a motor

Aug 31, 2007 | Rainbow E series Canister Wet/Dry Vacuum

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