The Hörmann A445 (and its sister model, the B445) is a versatile industrial door control unit designed for sectional doors using drives like the WA 400 or ITO 400. Essential Technical Information
The A445 features a 3-phase power supply and an integrated 2-digit 7-segment display for status and programming. Operating Voltage: 400V / 3Ph / N / PE.
Protection Class: IP 65 (dust-tight and protected against water jets).
Key Components: Foil keys for Up-Stop-Down control and an optional integrated main switch. Basic Programming Steps For initial setup or limit adjustments:
Enter Programming Mode: Press and hold the "PRG" button until the display shows 00. hormann a445 manual
Adjust Limits: Navigate to menu 01 using the arrow keys. You can then use the Up/Down buttons to set the upper and lower door positions.
Confirm Settings: Once limits are set, the display will show 01. Exit by holding the "PRG" button until the display returns to its standard state (typically showing 1 with a lower dash). Common Troubleshooting Codes The A445 display provides feedback for diagnostics:
Error 11: Safety device self-test failed at socket X30. Check the opto-sensors or connection cables for dirt or misalignment.
Error 21: Motor blocked or does not start. Verify the motor connection cable sequence at socket X30 or check if the motor is disengaged. The Hörmann A445 (and its sister model, the
Sluggish Movement: Often caused by spring tension issues or mechanical obstructions. Official Manual Links
You can access full PDF documentation through these sources: Control A445 Hörmann in housing - Parkeerapparatuur.nl
This is the most common "panic" moment. If the door opens but won't close, and the light on the motor is flashing, it’s usually a safety sensor issue.
Lost your paper manual? Do not rely on photocopied or third-party summaries. Here is how to get the official document: The Fix: Check the photocells (the eyes) at
The A445 communicates issues via blinking LEDs on the control board. Here is a decoder table based directly on the Hörmann A445 manual:
| LED Blink Pattern | Meaning | Solution (from manual) | | --- | --- | --- | | 1 blink, pause | Travel limit not set | Program open/close limits (see Part 5). | | 2 blinks | Force exceeded (obstruction) | Check door balance. Remove obstruction. Re-learn force. | | 3 blinks | Photo eye error | Clean lenses. Align sensors. Check wiring. | | 4 blinks | Motor temperature too high | Wait 20 minutes for cooling. Improve ventilation. | | 5 blinks | Internal logic board fault | Cycle power. If persists, replace control PCB. | | Continuous fast blink | Radio interference | Change remote channel or move large metal objects away. |
Manual emergency release not working? If pulling the red cord does not disengage the drive, the manual advises checking for rust on the release lever or a bent rail. Do not force it—call a technician.