Are you hearing any noise at all when you try to turn it on? Is the bag currently full?
Close the app completely, reopen it, and check if the demo profile appeared.
If your vacuum sounds like a jet engine or makes a high-pitched grinding sound, the ball bearings inside the motor are likely failing. This usually happens if fine plaster dust, drywall dust, or water bypasses the dustbag and enters the motor housing.
Standard bags cannot filter out microscopic drywall, plaster, or concrete dust. It passes straight through into the motor bearings, destroying them. miele 3717 fix
Carefully lift the top casing straight up. Be gentle, as there are ribbon cables connecting the suction control buttons on the lid to the main PCB down below. Unplug these cables before completely separating the pieces. 6. Preventative Maintenance to Avoid Future Fixes
Pull the cord out completely and look for physical tears or fraying. If the cord reel won't retract or isn't passing electricity, you will need to open the canister body and clean the copper slip rings with electrical contact cleaner, or replace the cord reel assembly entirely. Test the On/Off Pedal Switch
Before you call in a pricey technician or consider replacing the machine, know that many Miele W3717 faults can be fixed with a little patience and a few tools. Are you hearing any noise at all when you try to turn it on
A full dust bag is the leading cause of suction loss. Always ensure the bag is properly seated; an improperly installed bag can allow dust to cake inside the machine, potentially damaging the motor.
Follow these steps in order to resolve the connectivity issue:
4. Fix 3: Clearing the Waterproof Anti-Flood System (The "Humming" Machine) If your vacuum sounds like a jet engine
: Ensure the rinse aid dispenser is full and that the "AutoOpen" feature (if equipped) is enabled to allow steam to escape at the end of the cycle. When to Call Professional Support Contact Miele Customer Service if:
If your Miele vacuum cleaner has suddenly lost suction, refuses to turn on, or is making a strange noise, you do not immediately need to take it to an expensive repair shop. Many common issues with the Miele 3717 series can be diagnosed and fixed at home with basic tools and troubleshooting steps.
