Numatic Popular Questions, Answers, Tips & Manuals

There are a few potential causes for why your Numatic George wet/dry vacuum is not spraying and only producing a faint buzzing sound. Here are some troubleshooting steps you can try:

1. Check the water level: Make sure that the water level in the tank is sufficient and not too low. If the water level is too low, it can cause the spray function to malfunction.
2. Check the water supply hose: Make sure that the water supply hose is properly connected and not kinked or damaged.
3. Check the spray nozzle: Make sure that the spray nozzle is not clogged and is able to rotate freely. If the nozzle is clogged, it can prevent the spray function from working properly.
4. Check the motor: If the motor is not functioning properly, it can cause the spray function to malfunction. To check the motor, you can try running the vacuum without the hose or attachments to see if it is functioning properly. If the motor is not functioning properly, it may need to be repaired or replaced.

If these troubleshooting steps do not resolve the issue, it may be necessary to take the vacuum to a professional for repair.

When you say it wont work, what do you mean?

If the machine is vibrating while on, then this would suggest that something has caused the motor to become out of balance. This could have been cause by some foreign object being allowed to go through the motor, dampness/moisture through the motor causing the bearing to collapse. Either way the motor will need to be replaced.

replace the unit

It can be disabled to stay in high mode, but you need to know what you are doing. It basically involves removing the small PCB and connecting the motor wires directly to the on/off switch. The hi/lo switch can be left in place (although not connected) or removed and a blanking plate put in it's place. You can leave a hole as this is a potential hazard and against government regulations.

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What is wrong with the yellow flashing light? This is a bag full / low air flow indicator. If your bag is not full then you most likely have a blockage in the hose, wand or tool.

Sounds like it could be a wire broken in the lead not making contact at times

If any moisture has entered the vacuum at any time then this will cause a musty smell. Does the primary filter have discoloration or a yellowy stain on it? this usually indicates moisture has been present at some stage. Replacing the filter may help or you can place a small sachet of air freshener beads (glade) in the bottom of the canister under the bag. This will give a pleasant smell whether vacuuming or blowing.

The rule of thumb is that if you can put your hand in it, then it is okay for the machine. If it is too hot then you will distort the container. Once distorted it can't be fixed, and will need replacing. As for cleaning liquid, this goes in what is called the solution container, and once again, any liquid/chemical needs to be of a strength that you can safely put your hand in.

switch gone

You say that you have checked the belt, so I assume that you ensured that the belt is engaged properly and is not slipping. When you press the switch on and then off, do you hear the belt drive motor turning? If not, then you either have a defective drive motor or a defective switch. Testing the switch will give you the answer. To do that, first unplug the vacuum from the wall outlet and then gain access to the switch connections be removing any parts that prevent such access. Using an inexpensive digital multimeter set to read ohms, touch the two probes together and you will see the meter reads 000.0 and that is the same thing you should see if touching the probes to the switch connections with the switch in the "ON" position. In the "OFF" position, the meter should show something other than zeros, or show no reading at all. If your readings are as they should be, the switch is good and you then need to ensure that the wires connected between the switch and the belt drive motor are in fact connected securely and are not loose. If the connections are good then next you need to determine if you are actually getting power to the switch, and if you are then the belt drive motor is the suspect. If you don't know how to test for power at the switch using the meter or a test light then you should ask someone to assist you who does have that knowledge in order to avoid the possibility of electrical shock. If there is no power to the switch, there is obviously a bad connection between the switch and the power cord which feeds it, so you would need to trace those connections and determine the cause.

Hi Elizabeth.It depends how old the machine is and how much work it has done.It could be the motor needs replacing and most good vac repair shops can do this for you.Hope you get it sorted. You could contact Numatic technical on 01460 68600

You will need to remove all the wires off it and off the hi/lo rocker switch. Then disconnect to two wires on the opposite side of the on/off to the power in side. The two white motor wires then get connected to this switch. The machine will now run on high speed only when turned on.

If you have a bath, I suggest that you run a couple of inches of hot soapy water and leave them to soak for half an hour.When you take them out twist and pull the tubes at the same time. If they still do not come apart hold at 45% to the floor and tap one end lightly on the floor (not so hard that you damage anything) turn a little after each tap, then try again to twist an pull them apart. When you do part them clean the joint where the tubes touch and then rub will a little cooking oil on a piece of kitchen roll, makes them easier to part next time.

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brushes need changing on motor overheating

Check for blockages in all the filters and hoses, from your description it sounds like the pump is trying to go but can't

you dont if you do youll blow up the motor as it will get 3000w and catch fire

Hi, Realistically this should only be done by someone who is capable of doing this kind of work. Electricity can be can kill if all procedures are not followed.