Brand: SIEMENS
Category: Tumble Dryer
Document Type: Manual
Language: EN
Manual for MT 502
Uploaded: Nov. 21, 2025, 7:43 p.m.
Your new dryer
Congratulations - You have chosen a modern, high-quality Siemens domestic appliance. The condensation dryer is distinguished by its economical energy consumption. Every dryer which leaves our factory is carefully checked to ensure that it functions correctly and is in perfect condition.
Intended use
- For domestic use only. - Only to be used for drying fabrics that have been washed with water. - Do not leave children unsupervised near the dryer. - Keep pets away from the dryer. - The dryer can be operated by children 8 years old and older, by persons with reduced physical, sensory or mental abilities and by persons with insufficient experience or knowledge if they are supervised or have been instructed in its use by a responsible adult.
Preparing for installation
Make sure your hands are dry. Hold the plug only.
Sorting and loading laundry
- Remove all items from pockets. - Check for cigarette lighters. - The drum must be empty prior to loading. - See programme overview on page 7. - See also separate instructions for "Woollens basket" (depending on model)
Selecting and adjusting the programme
- Select the drying programme and adapt to individual requirements.
Drying
Emptying condensation: Empty container after each drying operation! Pull out condensation container keeping it horizontal. Pour out condensation. Always push container in fully until it clicks into place. If Empty water flashes in the display panel → What to do if..., Page 10.
Cleaning the fluff filter: Clean the fluff filter after each drying operation. Open the door, remove fluff from door/door area. Pull out and fold open the fluff filter. Remove the fluff (by wiping the filter with your hand). If the fluff filter is very dirty or blocked, rinse with warm water and dry thoroughly. Close and reinsert the fluff filter.
Switching off the dryer: Turn the programme selector to Off. Do not leave laundry in the dryer.
Removing the laundry: The automatic anti-crease function causes the drum to move at specific intervals, the washing remains loose and fluffy for an hour (two hours if the additional Less Ironing function is also selected-depending on model).
Programme end: Once lights up in the display. Interrupt programme removing or adding laundry. The drying cycle can be interrupted for a brief period so that laundry may be added or removed. The programme selected must then be resumed and completed. Never switch the dryer off before the drying process has ended. Drum and door may be hot! Open door, the drying process is interrupted. Load or remove laundry and close door. If required, select a new programme and additional functions. Press the Start/Stop button.
Troubleshooting and error codes
| What to do if ... | Possible Cause | Solution |
| The Start/Stop indicator lamp does not light up. | Mains plug plugged in? | → check |
| Programme selected? | → check | |
| The display panel light and indicator lights (depending on model) go out and the Start/Stop indicator light flashes. | Check the socket fuse. | → check |
| Energy-saving mode is activated | → see the separate Energy-saving mode instructions. | |
| The Empty water and Start/Stop indicator lamp flash. | Empty the condensation container. | → Page 4 |
| If featured, check hose for condensation outlet. | → check | |
| The Clean filter and Start/Stop indicator lamp flash. | Clean the fluff filter and/or air cooler under running water | → Page 4/6 |
| Dryer does not start. | Start/Stop button selected? | → check |
| Door closed? | → check | |
| Programme set? | → check | |
| Ambient temperature greater than 5 °C? | → check | |
| Water is running out. | Align dryer horizontally. | → check |
| Clean air cooler seal. | → check | |
| The door opens by itself. | Push the door closed until you hear it engage. | → check |
| Creasing. | Laundry load exceeded? | → Page 7 |
| Remove articles of clothing immediately after the end of the programme, hang up and pull into shape. | → check | |
| Unsuitable programme selected | → Page 7 | |
| Drying result is not satisfactory (laundry feels too damp). | Warm laundry feels damper than it actually is. | → check |
| The selected programme does not suit the load. Use another drying programme or, in addition, select the time programme | → Page 7 | |
| Use fine adjustment for the drying result | → Page 1/2 and 5/6. | |
| Fine layer of limescale on the humidity sensors | → Clean the humidity sensors → Page 6. | |
| Drying time too long. | Programme termination, e.g. tank full, mains power supply failure, door open or maximum drying time reached. | → check |
| Rinse the fluff filters under running water | → Page 4. | |
| Insufficient supply of air ensure that air can circulate. | → check | |
| Air inlet possibly blocked Clear inlet | → Page 8. | |
| The humidity in the room increases significantly. | Ambient temperature higher than 35 °C → ventilate the room. | → check |
| Mains failure. | Make sure the room is sufficiently ventilated. Remove laundry from the dryer immediately and spread out. This allows the heat to dissipate. | → check |
| The interior light is not working (depending on model). | Clean filter and air cooler → Page 4/6. | → check |
| Check installation conditions → Page 8. | → check | |
| One or more indicator lights for programme status are flashing. | Switch off, leave to cool down, switch on again, restart programme. | → check |
| Pull out the appliance plug, remove the cover cap in the interior above the door (use Torx 20 screw driver) and replace the bulb. Close the cover cap. Never operate the dryer without a cover cap. | → Page 10 |