DraftMax Basic Spare Parts FAQs
Straight answers to the questions people ask most when finding and fitting spare parts for a downdraft extraction table.
How do I identify the right spare part for my downdraft table?
Start with the data plate on the table or its control cabinet. It gives the model, serial number, voltage, phase and frequency, and these decide which electrical parts and which motor or fan wheel fit.
Then look at the part itself. Electrical parts usually carry a reference or rating printed on them, and the wiring diagram and parts list in the manual show how each item is described. If you cannot match a part with confidence, send the data plate details and a photo to our team before you buy.
Which parts of a downdraft table wear out or fail most often?
The parts that work hardest are the push buttons and switching elements, the relays and contactors, the fuses, and the fan motor with its fan wheel. Control components fail from heat, vibration, dust and repeated switching. Fuses blow when something else is wrong, such as a motor drawing too much current.
Mechanical items such as adjustable feet can also be damaged by moving the table. Keep a note of what has failed, because repeated failure of the same part usually points to an underlying cause.
Why does my table trip or blow fuses repeatedly?
A fuse is the weakest link by design, so repeated blowing means something is overloading the circuit. Common causes are a failing motor, a jammed or damaged fan wheel, a wiring fault, a failing relay or a transformer problem.
Do not fit a larger fuse to stop it happening, because that removes the protection and can start a fire. Use the rating and type specified for that position, and have a competent person find the cause before the table is used again.
What is the difference between normally open and normally closed switching elements?
A switching element is the contact block behind a push button. A normally open element completes the circuit only when the button is pressed, which is the usual arrangement for a start function. A normally closed element breaks the circuit when pressed, which is the usual arrangement for a stop function.
If you fit the wrong type, the button will do the opposite of what its label says. Check the existing element before you replace it, and test the stop function carefully.