Sebo Air Belt c1.3 intermittant power off

SOURCE: SEBO vacuum cleaner

Take the hose off and see if the light is still on or is it off. If it is off, then there is a clog in the hose. While the hose is off, drop something thru it and see if it comes out the other end. Press the retaining clip and the hose will disconnect. Separate the power head from the handle unit to make sure there is no clog by the brush roll. If it is still on then probably the computer controller, part # 5740ER has a problem. It is located in the power head.

SOURCE: sebo x5 vacuum cleaner

The full bag light comes on when it is getting full or a blockage in the hose or the dirt inlet by the brush roll. Other then that, there is a circuit board called the computer controller, part #5740ER and is giving you a false reading and causing a shut down.

SOURCE: Sebo Automatic X1 vacuum 'check brush' light on

I work in a Sebo agency, where we sell and repair Sebos - although they're so reliable we don't get that many to repair.  What's "automatic" about this machine is that it automatically adjusts the brush height so that it's ideal for whatever floor it's on.  It does that by sensing the amount of drag on the brush.  On a wood floor, there's much less drag than on a carpet, so the machine lowers the brush as far as possible to get the optimum drag.  After a while (4 1/2 years in your case) the brush has worn so far that the machine can no longer get it down low enough to brush the floor effectively. That's why the light comes on.  There's still plenty of bristle to do a good job on carpet but, if you want to do the best job on your wood floors too, you need a new brush roller.  Change the brush roller, and you'll probably feel the suction's improved too!
Any questions, just post a comment and I'll help if I can.  I value your feedback so please remember to rate this response.
Good luck!

SOURCE: Sebo x1.1 fitted with new bag and filter but red

Without doubt this indicates that there's a blockage somewhere. The two easiest places to look are: 1. on the underside of the machine there's an inspection flap - check in there; 2. remove the flexible hose completely from the machine at both ends - check in the hose itself, and where it enters the machine near the handle .  The only other place to look is where the base connects to the bag compartment - to check there, you need to separate those two parts by pressing the button at bottom front of bag compartment and pulling the base away (this can be difficult - four hands would be useful - but once you're pressing that button, nothing else other than friction is holding the parts together). Once the parts are separated, check every orifice you can see (the parts just push back together again).
I think that covers it.  Good luck, and please remember to rate this response.

SOURCE: I have a Sebo air belt K1 How do you open the outer casing.

OK, but be warned... it's not so difficult getting the thing apart, but making a neat job of reassembly has been known to drive grown men to despair. And that's because you have to remove the airbelt. But first things first:
1. remove the hose
2. remove the hose-retaining ring
3. remove the flap that covers the green filter.
4. remove the screw beneath that flap nearest to the handle (there's a deeply recessed screw on the other side, but you can ignore that)
5. remove the clip at the back of the machine where the airbelt joins (lever it off carefully with a screwdriver)
6. this is where it begins to get interesting. The airbelt is in two parts - the bulky foam strip and a thin material cover. The cover is held in grooves, top and bottom, running all the way round the machine, by two thin plastic strips around which it is wrapped and which just slip into those grooves. The first challenge is to get those strips, and the covering material, out without damaging them. Just prise one end out with a small screwdriver and work your way around the machine - it's more a matter of patience than anything else. (The second challenge is getting it back neatly!)
7. remove the ends of the foam strip far enough to reveal two plastic clips that hold top and bottom of the body together
8. prise those clips off with a screwdriver.
9. it should now be possible to lift the top cover off. It can be a bit fiddly getting it off over the neck where the hose plugs in, but it does come off.
10. the cable rewind spool is now revealed in all its glory.
11. if you've found my advice helpful so far, here's a final piece... don't try to fit a new cable to the old spool - fit a complete new spool.
12. good luck!
I value feedback, so please remember to rate this response.

Testimonial: "Followed your directions and were fine.I joined a new lead close to the end of the spool by soldering the wires together and covered with tape. Now ok"