Brand: AEG
Category: Heating
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for WKL 503
Uploaded: Nov. 21, 2025, 7:10 p.m.
Warranty Information
The warranty is 24 months for private use and 12 months for commercial use, starting from the date of purchase.
Important features in brief
1. On/off switch
2. Temperature selector button
3. Locking pin
Description
The WKL is an electric direct heater exclusively for wall installation. It is suitable for heating a bathroom or as transitional or additional heating for small rooms.
Function
Air is heated and emerges by natural convection. Cool room air enters through openings in the underside.
Safety device: Protective thermostat (STR) switches off on overheating.
Operation
Switch on/off using button (1). Set desired temperature (+6°C to +30°C) with selector (2). Intermittent heating maintains temperature. If multiple heaters are in a room, settings can vary. Switch off when ventilating.
Frost protection
Set selector (2) to far right stop (*) for frost protection. Heating automatically activates if room temperature drops to +6°C.
Troubleshooting and error codes
| What to do if ... ? | Check that... |
|---|---|
| • the unit does not get hot? | - the ON/OFF switch is turned on. - in your fuse box, the corresponding fuse is intact or whether the breaker has tripped. Eliminate cause! If the heater still does not warm up, call customer service! |
| • the unit switches itself off? | Check whether it is covered, so it could have overheated (e.g. covered air outlet or inlet opening). Eliminate cause! If it does not warm up again after a few minutes' cooling down period, call customer service! |
| • customer service is called? | Read the type (Typ) and number (Nr.) from the rating plate (8) on the unit and tell customer service! |