We have the Hush Central and are not getting sufficient suction. The motor in the canister sounds fine and we have checked the hose for blockages, as well as cleaning all the contacts in the hand nozzle control. Any suggestions ?
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Re: Hush - Insufficient suction
You need to approach this step by step. If you have insufficient suction at all locations you need to check as follows: 1. Hose, drop a coin through from the handle to the wall end, with the hose detached from the wall. If the coin goes through from one end to the other the hose should be clear. If the coin stops it will rattle inside where the obstruction is if you gently shake the hose you will feel it through the wall.Obstructions in hose or pie need to bee **** wards out of the hose or pipe. 2. Vac. Go to the vac itself and see if the onboard inlet has suction. If it does your problem is beyond the vac. If not your problem may be a leak, either a broken inlet, with a cracked or sagging door or jammed hinge, a clogged intake in the vac, or damage to the pipe within the house or a twisted gasket where the pail of the vac secures to the body, or an issue with the motor itself.. 3. Take the hose, inlet to inlet and check all locations in the house. I mark a tissue with a number for each inlet and plug in the hose, one inlet at a time. If the tissue makes it all the way to the bucket from each location, that means the branch line for that location is clear. I work from the closest inlet away to the furthest checking for tissues one inlet a t a time. This will help pinpoint location of any blockage in the main line. 4. If you have had any renovations or painting done it is not uncommon to disturb the seal behind and inlet or pierce your piping with a nail or screw. Check for all these and post back to say waht you have found.
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Check the filter in the tank. If this is dirty, the motor will still run, but there will be little to no suction. Rinse thoroughly under warm water, then allow to thoroughly air dry before replacing into vacuum.
I recommend having two filters in order to use one while the other is drying.
Disconnect the incoming pipe from the vacuum power unit and turn the switch on (on the side of the unit) while you feel the bottom of the unit with your hand. If BOTH motors come on and sound normal and are producing suction you should feel the bottom of the canister flex or you should feel suction at the inlet connection.
If the bottom flexes but there is no section at the inlet there is an obstruction in the pipes witin the vacuum unit. A stiff wire with a hook bent at the end is usually sufficient for removing the dust stuck in that piping.
You can also unplug the 110v poser then remove the top cover (only 3 or 4 screws) and visually inspect the motors and piping for failures.
On some units there is a screen that protects the impeller of the motor. If this gets sealed off with debris then it is like putting a potato in the tail pipe of a car. Taking the top off the unit reveals the motor. DO UN-PLUG the unit first from the electrical outlet. Take off the exhaust piping if any to allow the motor to be lifted out of the canister. There is typically enough wire to allow this without taking any wires off. Look at the bottom of the motor to make sure the nut has not spun off the impeller and it is still attached to make suction. The look at the hole (aprox. 2" round) to make sure it is clear of any debris. If it is not clean it and re-install everything. If the impeller is off the motor it is new motor time.
Most of these motors, the fan cover is just pressed on, but getting off isn't easy and you don't want to bent it up. Maybe using a flatblade try to knock it off from the edge of it may loosen it enough to pull it off.
There should be a switch on the canister, for manual or automatic. Switch it to manual and see if it comes on. If it does, then there maybe a bad relay. If it doesn't, then there is a problem inside of it, motor, pc board, would have to be checked. Without the model number, not sure what components are inside without the model number to look it up.
Is the suction low at the tank after you disconnect the hose? If it is strong there, then the hose may be clogged. You can unhook the hose from the wands to see if you have suction or not. If you do, then look further down all the way to the brush roll. The other possible is if no clogs, check the filters, on the E series, there is a filter on the back, there is some also had one in the top and you would have to take it apart to get to it. One other is that the motor is not running at top speed and may have to be replaced. It can sound ok, but will have reduced suction. If you suspect the motor, check your owner manual, some of these newer ones had a long warr. period on the motor.