Mdy vacuum is losing power on the canister and the power is still in the power head.

my dyson canister vacuum will not turn on. it cutoff mid use and now will not tuen back on. checked filter, checked head, removed debriss from head and emptied canister with no luck

Brush head may need. To be cleaned or replaced

No suction is happening when I take the main head off...

it also indicates red on the canister "performance indicator

the problem could be with the power head itself or the hose providing the power. If you can turn the unit on from the handle, then its not the hose and you need to get a new power head..

I have seen this many times. It is either a bad connection or a break in the wire. Turn it on and flex the wire and connection until you can reproduce it dependably. Then you will know what it is and where.
It is very aggravating. You need to fix it soon, before you take to jumping up and down on it and bust the wand and the power head also.

There should be a toll - free phone # on your rating plate (located on belly of the main canister) to call for parts.

Think it comes off of the hose. Maybe it broke off.

Here is a pix.

if you have an extension wand, the replacement will cost about $100.00. there is a way to repair both the pwr-cord on the brush assemble and the wand, but it depends on how much damage there is. also you need to check the contacts where the wand connects with the handle,and the prongs on the handle.

let me know if you still need help

i have the kenmore whisper belt and i have a reset button on mine