How to for Belt replacement and solution to suction loss

Replace the belt if it is over a few months old. Even if the suction is great it won't pick up dirt very well if the belt is stretched out.

Even with your explanation,it seems the hose is clogged.Try taking the hose off,then blow through it or pour water through it.If this doesn't do it,make sure the suction canals are going to the proper areas.

did you check the hose to see if there is a slice in it somewhere. Alot of times you can get caught on something or bend it the wrong way and it will crack the hose causing suction loss. The other possibility is a clogged filter somewhere in the system or your bag is too full

I had the same problem. Take out the old belt if possible. Remove the 4 screws inside the filter and the 3 on the front of that housing. pull out the foam around the motor. carefully pull out the suction tube that is press fit against the motor. then you can pull the motor out. place it on its side, shaft side up and grab your hammer. tap down the metal sleeve that has been rubbing against the plastic housing. reinstall everything including a new belt and you should be good to go.

Is the belt slipping. Are all the seals good

your eureka has no suction kuz the vacum hose needs cleaning

I have listed below a link to the owners manual for your model and a link where you can purchase the belt you need. Hope it helps you!

Eureka Contour 2900 Owner's Guide

Eureka Contour 2900 Belt

the bearings in the motor needs to be checked,
or the impeller is damage.

The bag is full.You need to take out old bag and replace with a new bag.

Jim

I no more use Eureka 4331 (Boss Lite). But the most common reason for not picking up dirt might be the vacuum bag might be full. Need to be Clean or replace as recommended by the manufacturer or The air filter traps particles as the air travels through the vacuum cleaner. If the filter is clogged, the vacuum cleaner will not have proper suction. If your vacuum filter is clogged, refer to your owner's manual for cleaning instructions. I recommend having Eureka Power Speed for yourself.