If you have a Hörmann garage door, you already know you’ve invested in German engineering. They are quiet, reliable, and built to last. But even the best machinery needs a little attention now and then.
Maybe your remote stopped working, the door isn't closing fully, or you just want to change the battery in your keypad. You went to the drawer where you keep the documents, and—unsurprisingly—the Hörmann A445 manual is nowhere to be found.
Don't panic. While a physical copy is handy, most of the issues you’ll face with the A445 can be solved with a little know-how. In this post, we’ll cover where to find the manual online and summarize the most common sections users are looking for.
The Hörmann A445 is a high-quality, maintenance-free tubular motor drive designed specifically for sectional garage doors. Known for its quiet operation and integrated soft-start/soft-stop technology, the A445 is a staple in European garage automation.
This guide covers the essential technical data, installation steps, programming of the internal shuttle, and troubleshooting for the ProMatic series logic.
Hormann A445 is a control unit designed for industrial sectional door drives, including the WA 400, WA 400 M, and ITO 400 models . It is characterized by its high protection class (
) and integrated 4-digit display for easy programming and diagnostics. Parkeerapparatuur.nl Core Specifications Power Supply : Requires a 3-phase 400V AC (+N +PE) connection. Operating Voltage : 24 V control voltage with a maximum load of Temperature Range : Built for extreme environments, operating between -20ºC and 60ºC Limit Settings : Uses an electronic encoder via rather than mechanical limit switches. Parkeerapparatuur.nl Programming & Initial Setup
To set up or program the A445 control unit, follow these general steps found in the Hormann programming guides Enter Programming Mode : Long-press the program button until the display shows Select Function : Navigate to to begin limit adjustment. Set Limits
Set the upper limit first; the display will show an upper dash symbol. Set the lower limit (stopping roughly 5 cm before the ground
: Use the enter button to save each position. The display should return to a '1' with a lower dash once programming is finalized. Troubleshooting & Error Codes
The A445 unit displays specific codes to identify system issues: : Indicates the RSK (Safety Circuit)
is open; typically requires checking jumpers in plugs X1 or X3. Sensor Obstruction
. Check for blockages in the door’s path or the closing edge safety device. Power Supply Issue . Check main power connections and circuit breakers. Motor Overload hormann a445 manual
. Often caused by mechanical binding or excessive strain on the motor. Shakti Hormann
For remote operation, the A445 is compatible with smart accessories like ismartgate
, allowing control via smartphone and integration with HomeKit or Alexa. wiring diagram for an external accessory? Hörmann A445 Instruction manual - Remootio
The Hörmann A445 is a high-performance industrial door control unit designed for 3-phase operators like the WA 400 or WA 400 M. Housed in a robust IP 65 rated enclosure, this unit is the standard for modern warehouse and commercial door management. Core Technical Specifications
The A445 acts as the "brain" of the sectional door, managing power distribution and safety signals. Power Supply: 400V AC / 3-phase / N / PE.
Interface: 2-digit 7-segment display for status and error codes.
Safety Features: Integrated SKS (Closing Edge Safety Device) and photocell connections. Operating Temp: -20°C to +60°C. Installation and Commissioning
Only qualified electricians should perform the electrical setup to avoid life-threatening hazards.
Mounting: The control housing must be installed so the door is visible during operation but protected from extreme temperatures.
Wiring: Use separate cable paths for control wires and power lines to prevent signal interference. Ensure the mains cable enters the housing from the bottom. Initial Programming:
Enter programming mode by long-pressing the PRG button until "00" appears.
Set the Upper Limit by navigating to menu "01" and holding the "Up" button until the desired position is reached, then press Enter. Lost Your Hörmann A445 Manual
Set the Lower Limit by stopping approximately 5 cm before the floor and fine-tuning until "L" with a lower dash appears. A445 Error Codes & Troubleshooting
The 7-segment display provides immediate diagnostics for system faults. Sectional Door - Shakti Hormann
Hörmann A445 (and its variant B445) is a control unit designed for industrial sectional doors, typically used with shaft operators like the xn----7sbfo9agcaeodvh.xn--p1ai Quick Setup & Overview
The A445 serves as the "brain" for your door, managing safety devices, motor limits, and external controls. Below are the key components and procedures typically found in the manual. Main Components
: The unit consists of a basic and power circuit board housed in a protective casing. 7-Segment Display
: Located inside the control box, this displays status codes, door positions, and error messages. Operator Compatibility
: Specifically optimized for 3-phase (A445) or 1-phase (B445) power supplies depending on the specific motor model. xn----7sbfo9agcaeodvh.xn--p1ai Key Terminal Connections
For technicians or advanced users, the following terminals are commonly used for external accessories: Terminal 20 & 21
: Potentially free contacts often used for "step-by-step" operation (Open-Stop-Close). Socket X30
: Safety device self-testing connection. If this fails, the unit will display a specific error code. Socket X31
: Must be assigned for proper operation; typically related to door monitoring. Socket X33/X34 : Used for connecting 8k2 resistance contact strips. Common Troubleshooting Codes The A445 uses numeric codes to indicate issues: Error Code 11
: Often indicates that a safety device (like a photo-eye or contact strip) has been triggered or there is a wiring fault in socket Yellow LED Off For BiSecur (Newer models – rolling code)
: Check the wicket door contact or ensure all X31 sockets are properly assigned. JustAnswer Safety & Maintenance Emergency Release
: In case of power failure, use the emergency release handle. Once power is restored, the green button on the carriage block or the operator's "Up" arrow is used to re-engage the drive. Qualified Operators only
: Repairs and door refitting should only be performed by qualified personnel to ensure the load break switches and earthing are handled correctly.
For the full technical diagrams and step-by-step mounting instructions, you can access official PDF copies through documentation sites like the A445 Instruction Manual (English) Industrial Sectional Door Guide If you are looking to perform a specific task with your A445, such as: Programming new travel limits Connecting a smart home module (like a Shelly or Remootio) a specific error code
Troubleshooting programming failures:
Most A445 units have a QR code sticker on the side of the motor housing. Scanning this with your smartphone will take you directly to the specific manual for your serial number.
To keep your A445 running for 15+ years, follow the maintenance checklist printed in the back of every official manual:
As per BiSecur manual supplement:
Note on BiSecur: The A445 manual notes that you cannot copy a BiSecur code—you must pair it using the "teach-in" method above.
Hörmann makes it relatively easy to find digital copies of their documentation. If you need the full PDF for your specific serial number, you have two main options:
Tip: Keep a digital copy saved to your phone or cloud storage so you never lose it again!