Miele Upright S 7000 -- running hot?

I have a theory about the exhaust coming out of new vacuum cleaners: it is possible that what you are seeing are fine particles that have been deposited during manufacture. During the first few weeks after buying my Electrolux UltraSilencer Green, I could swear that my hands were being covered with very fine microscopic particles being blown out of the exhaust. The invisible cloud of blown particles disappeared forever after a few uses, and so I am convinced that the vac was spewing out extraneous particles from the motor and the filters that are a byproduct of the manufacturing process. Even my Hoover Tempo upright showed sparking of extraneous dust at the power switch for a few weeks after I bought it. This must have been due to extraneous material left on the switch in the factory because the sparking soon disappeared.

By the way, it seems that Consumer Reports tests showed that the S7 uprights which come with the more expensive Hepa filter have less air-flow than those that use the cheaper exhaust filter. Apparently the cheaper filter does an acceptable job of reducing emissions while allowing air to flow faster thru the cleaner. This might reduce the heat on the exhaust of your Miele! :-)

Just some thoughts to think about....


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Post# 234213 5/27/2013 at 14:18 (3,980 days old) by aaronvan ()
Checkrate/Likes 1 I was wondering if anyone has this Miele Home Care vacuum and is troubled by heating. The area around the HEPA filter cover seems to get unusually hot during operation and stays quite warm for some time after the vacuum is turned off. Also, the air blowing out of the dust filter compartment deposits a lot of dust on the front of the vacuum. That seems unusual because only clean filtered air should be coming out. I've checks the filter and it seems to have a good seal when the lid is closed. Does anyone know if the heat and the dust are normal byproducts of operation? Otherwise, this is a fine machine; in fact, it is the best vacuum cleaner I have ever owned.

Post# 234230 , Reply# 1 5/27/2013 at 16:02 (3,980 days old) by mieles7 (TX)
Checkrate/Likes Most vacuums get hot after long periods of use. How long have you had the filter? It may be clogged up, causing dust to escape and preventing the heat from leaving the vacuum.

Post# 234304 , Reply# 2 5/28/2013 at 06:20 (3,979 days old) by sebo_fan (Scotland, UK, member AKA ukvacfan, & Nar2)
Checkrate/Likes Well my Miele S6 Ecoline isn't running hot but following pick up of fine saw dust the other day I discovered the Miele's outer body caked in dust. Went into the bag area and found that the Active Air clean filter (about 3 months old) had a little dust on the sides. Have now fully cleaned it out - but I won't be attempting to suck up woodwork dust again with the Miele - lesson learnt there!

Post# 234401 , Reply# 3 5/28/2013 at 19:27 (3,979 days old) by aaronvan ()
Checkrate/Likes My filter is brand-new, as is the vacuum itself. The more I use it the more I believe that the heat is normal because all the air is squirted out of that small area. Not sure about the dust, though. I'll have to monitor it longer.

Post# 234406 , Reply# 4 5/28/2013 at 19:51 (3,979 days old) by eurekaprince (Montreal, Canada)
Checkrate/Likes I have a theory about the exhaust coming out of new vacuum cleaners: it is possible that what you are seeing are fine particles that have been deposited during manufacture. During the first few weeks after buying my Electrolux UltraSilencer Green, I could swear that my hands were being covered with very fine microscopic particles being blown out of the exhaust. The invisible cloud of blown particles disappeared forever after a few uses, and so I am convinced that the vac was spewing out extraneous particles from the motor and the filters that are a byproduct of the manufacturing process. Even my Hoover Tempo upright showed sparking of extraneous dust at the power switch for a few weeks after I bought it. This must have been due to extraneous material left on the switch in the factory because the sparking soon disappeared. By the way, it seems that Consumer Reports tests showed that the S7 uprights which come with the more expensive Hepa filter have less air-flow than those that use the cheaper exhaust filter. Apparently the cheaper filter does an acceptable job of reducing emissions while allowing air to flow faster thru the cleaner. This might reduce the heat on the exhaust of your Miele! :-) Just some thoughts to think about....

Post# 234789 , Reply# 5 6/1/2013 at 17:03 (3,975 days old) by aaronvan ()
Checkrate/Likes Thanks eureka prince, I think that might be it.