Hoover s3765 Hose works, but when I attach the wand and floor tool, very little suction and when I increase all the red lights goes on...checked everything...help please

Hi There,.

So when this light is displaying, it's says "Bag Full or Clog" on the indicator. If you have changed the bag, and it's still showing this light, it means that you either have a clog in the vacuum, or your filters are dirty, which is reducing the suction and making the machine think that your bag is full. If your machine is actually cutting off, this indicates that your machine is definitely clogged, or something is stuck inside which is causing the motor to not get air flow, and cauing the machine to over heat. When it shuts off like this, it's a protection system that prevents any damage from happening to the motor when it can't breathe and starts to overheat.

My guess is that there is probably a clog in the machine somewhere, or the filters are dirty. Here's what you may do to diagnosis the machine, and try to isolate the clog to find out where it is in the vacuum.

Step 1. Remove the hose and wand assembly from the vacuum cleaner completely. You may do this by pressing the two tabs on the end of the hose that plugs into the vacuum cleaner:



With the hose and the wand removed from the vacuum, it should look like this:


Step 2. Now turn the vacuum cleaner on and check to see if the red light comes on while the hose and the wand have been removed. If the light comes on, then this indicates that your filter is dirty (or the PCB electric board is bad if the filter is clean) and needs to be replaced.

Step 2. Re-attach the hose and wand back on the vacuum, but just the end of the hose that goes into the vacuum cleaner, leave the wand out of the vacuum cleaner so it looks like this:



Turn the machine on now as if you were using the attachment hose to clean corners or above the floor and see if the red light comes on here. Also listen to the noise the motor makes and see if the noise changes when you put the hose back on the vacuum cleaner. If the red light appears, or if the motor makes a higher pitched noise now, then this indicates that you have a clog in your hose or wand. You may verify this by remove the hose again from the vacuum, and also removing the wand from the hose by pressing the hose release button on the wand and pulling the hose out of the wand. Look down both of the parts and see if you can see thru both sides. If you're not able to see light through the hose, or the wand, this indicates this is where the clog is. You may take a metal clothes hanger, and try removing the clog this way.

Step 3. If the red light did not display with the wand not inserted into the vacuum, put the wand back into the vacuum cleaner as if you were vacuuming the floors:



Turn the machine on, and see if the red light comes on in this position. If the light does come on, then this indicates that you have a clog in the bottom of the vacuum cleaner. To check and see the clog in the bottom of the machine, I find it easiest to remove the upper bag housing from the vacuum cleaner completely so you're just looking at the bottom power nozzle of the vacuum cleaner. There's a button at the bottom of the machine that is either a grey, or yellow color depending on what color your vacuum is. Simply press this button in, and lift upwards on the handle or the bag housing at the same time:



Step 4. After the bag housing has been removed, turn the lower part of the vacuum upside down so the brushes are facing upwards. There's a little orange flap on the bottom of the machine that is actually a clog port. Almost every time there is a clog in a Sebo, this is where I typically find the clog. Open up this orange colored trap door, and look to see if you can see any obstruction or clog underneath of here:



Step 5. You may rotate the neck of the power nozzle part towards you so that you may look inside to see if you see any obstructions inside:


Step 5. You may also remove the brushes from the vacuum and look behind the brushes at the suction port, or the area where the suction goes through the vacuum to see if you see anything obstructing the suction here.

These are really the only places that the Sebo can get clogged. If you checked all of these areas, and the red light is still displaying, this means that your PC Board that controls this indicator has gone bad, and needs to be replaced. If this is the case, please just reply to this repair using the comment field, and I'll be more then happy to help you through the replacement of replacing the PCB Board.

I hope this answer was helpful to you, and you were able to find the clog and fix the problem. If you found my repair helpful, please be sure to rate the repair

If you light and nozzle motor both go off at the same time, you might have a bad power cord. Mine had this problem which I could verify by jiggling/twisting the cord near the strain relief on the nozzle. It would go on and off as I did this. The cord is cheap to replace, around $13 for the part shipped. Part number is 59134072.

sounds like a possible plug ,then when you first start it up the plug gets stuck a gain.
try taking hose off the unit and running water through hose .if water flows good ,check and see if lid is secure when closed.

you may have a blockage in either the hose, the telescopic wand or the power nozzle/floor attachment. The easiest way to tell, as you have a new bag in there is to disconnect the hose and start the machine. If the suction is good there, start to narrow it down. Take apart the hose from the telescopic wand, take the attachment off and look through the wand. Look in the connection on the attachment as well. If not there, look inside both ends of the hose, you may need a flashlight for this, and see if there is anything blocking there.

If the hose is blocked, you can try to unblock it by turning the machine on and inserting the handle into the machine where the hose would attach to the unit. Sometimes this reverse of suction is enough to dislodge whatever is in the hose.

Good luck

On the Hoover U6311-900 there is no switch that turns off the suction to the tool hose. That hose is attached to the head of the vacuum on the side via a spring loaded "door". Just twist the hose to remove it, the door will close and you will have full suction again.

My Dyson dc18 had the same symptoms. The wand worked well and the floor bar had no suction. After removing pieces & shoving my fingers into the machine (no blockage) I found the suction pipe rotates between two positions (floor and wand). It looks like a piece of plastic broke on the outside housing, so it no longer rotates positions when the wheels are raised or lowered. My son found we can move the suction by sliding a finger into the mechanism behind the wheel cover, and rotating the plastic piece clock-wise or counter clock-wise until it locks into position. It's a big pain but it works for now. I wish I could find a replacement piece online. Patty

That means that you need to replace the belt. Here is the belt you need for your model.

Hoover Windtunnel Canister Belt

Just got connected it to the main hose and press the switch on

Most likely you have a clog. Starting at the brush head check every part of the lines for debris. More than likely YOUR clog is in the hose... easy enough to take a broom handle and gently push it through the hose (while the hose is NOT attached to the vacuum) Once you find the clog, you may have to use a little more pressure, but do so carefully, as you don't want to damage the hose itself.

Looks like you will have to replace the quick disconnect asm. part # 38646086, you should be able to order this thru a shop that repairs Hoovers. If this is less then 1 year, then it is under warranty. You can call Hoover's 1-800 #. should be in your owner manual and on the metal tag on the cannister to find out where you can get part.