1. Inleiding
Deze handleiding bevat gedetailleerde instructies voor de installatie, bediening en het onderhoud van uw apparaat. Webasto 1533 Digital Timer. This timer is designed to control Webasto Thermo Top C heaters, allowing for convenient pre-programming of heating cycles. Please read this manual thoroughly before using the device to ensure proper function and safety.
2. Veiligheidsinformatie
- Always ensure the vehicle's power supply is disconnected before attempting any installation or maintenance.
- Installation should ideally be performed by a qualified technician to prevent damage to the device or vehicle.
- Do not expose the timer to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture.
- Gebruik alleen origineel Webasto replacement parts and accessories.
3. Product voorbijview
De Webasto 1533 Digital Timer is an oval-shaped control unit featuring an LCD display and intuitive buttons for setting time and programming heating functions. It allows users to schedule heater operation in advance.

Figuur 3.1: Voorkant view van de Webasto 1533 Digital Timer, showing the oval shape, LCD display with '7:30' and a flame icon, and control buttons (up, down, set, flame/heater icon, fan icon).

Figuur 3.2: De Webasto 1533 Digital Timer displayed with its original packaging, a foam gasket, and a mounting screw. The packaging indicates multilingual labels for 'Digital timer 1533'.
4. Installatie en instellingen
De Webasto 1533 Digital Timer is designed for integration with your vehicle's Webasto Thermo Top C heating system. Proper installation is crucial for optimal performance.
4.1 Mounting the Timer
- Select a suitable location within the vehicle cabin that is easily accessible to the driver and away from direct heat or moisture.
- Ensure there is sufficient space behind the mounting surface for the electrical connector.
- Use the provided mounting screw to secure the timer in place.
4.2 Elektrische aansluiting
The timer connects to the heater control unit via a dedicated wiring harness (not included, may need to be purchased separately). Refer to your heater's installation manual for specific wiring diagrams.

Figuur 4.1: Achterkant view van de Webasto 1533 Digital Timer, showing the product label with model number '1322580A' and the 4-pin electrical connector.

Figuur 4.2: Close-up of the 4-pin electrical connector on the rear of the Webasto 1533 Digital Timer, highlighting the gold-plated pins for connection to the wiring harness.
- Connect the 4-pin connector from the wiring harness to the corresponding port on the back of the timer. Ensure a secure fit.
- Once connected, restore power to the vehicle. The timer display should illuminate.
4.3 De klok instellen
- Druk op de SET knop. De uurcijfers gaan knipperen.
- Gebruik de < En > knoppen om het uur aan te passen.
- Pers SET opnieuw. De minutencijfers knipperen.
- Gebruik de < En > knoppen om de minuten aan te passen.
- Pers SET een derde keer om de tijd te bevestigen.
5. Gebruiksaanwijzing
5.1 Manual Heater Activation
To manually turn on the heater, press the flame/heater icon button. The heater will start and operate for a preset duration (typically 30 minutes, adjustable via heater settings).
5.2 Programming a Heating Time
The timer allows you to program up to three different start times for your heater.
- Druk op de SET button repeatedly until 'P1' (Program 1) appears on the display.
- Pers SET again. The hour digits for P1 will flash.
- Gebruik de < En > buttons to set the desired hour.
- Pers SET. The minute digits for P1 will flash.
- Gebruik de < En > knoppen om het gewenste aantal minuten in te stellen.
- Pers SET to confirm P1.
- Repeat steps 1-6 for P2 and P3 if additional programs are desired.
- To activate a program, press the flame/heater icon button until the desired program (P1, P2, or P3) is displayed and the flame icon is solid. The heater will start at the programmed time.
5.3 Deactivating a Program
To deactivate an active program, press the flame/heater icon button until the flame icon disappears from the display.
6. Onderhoud
De Webasto 1533 Digital Timer requires minimal maintenance.
- Schoonmaak: Veeg het scherm schoon en casing met een zachte, damp doek. Gebruik geen schurende reinigingsmiddelen of oplosmiddelen.
- Batterij: The timer does not contain user-replaceable batteries for its primary function. Power is supplied by the vehicle's electrical system.
7. Probleemoplossing
| Probleem | Mogelijke oorzaak | Oplossing |
|---|---|---|
| Display is leeg | Geen stroomvoorziening; losse verbinding | Check vehicle's power supply and timer's electrical connection. |
| Heater does not start at programmed time | Program not activated; incorrect time setting; heater fault | Ensure program is active (flame icon solid). Verify current time and programmed time. Check heater for other faults. |
| Knoppen reageren niet | Tijdelijke softwarefout; fysieke schade | Disconnect and reconnect power to reset. If problem persists, contact technical support. |
8. Specificaties
| Functie | Detail |
|---|---|
| Merk | Webom te |
| Modelnummer | 1322580A |
| Compatible Heaters | Webasto Thermo Top C (12V) |
| Afmetingen (L x B x H) | 11.2x8.1x3.8cm |
| Artikelgewicht | 98 gram |
| Stroomvoorziening | 12V (from vehicle) |
9. Garantie en ondersteuning
Dit Webasto 1533 Digital Timer is a genuine Webasto part, ensuring quality and compatibility with your heating system. For warranty information, please refer to the documentation provided with your original heater or contact your Webasto-dealer.
Technical support is available for assistance with installation, operation, or troubleshooting. Please contact your authorized Webasto service partner or visit the official Webom te website voor contactgegevens voor ondersteuning.