The A 445 uses numeric codes to communicate status. A common "interesting" diagnostic code found in technical manuals is:
Check the plug connection on the encoder cable. Look for signs of moisture or water ingress inside the motor terminal box. Re-program the limit positions. Error 15 or E15 : Phase Failure / Incorrect Rotation
00 = Hold-to-run (Press and hold button to move) 01 = Impulse Open / Impulse Close (Automatic travel) Automatic Timed Close
Supports automatic closing, pulse mode, and various safety protocols. 2. Hormann A445 Installation and Wiring Guide
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If the "optics of the safety devices is dirty" or "transmitter and receiver are not aligned," the door will not close.
Industrial door systems require periodic checks to stay compliant with workplace safety regulations.
Check the trailing spiral cable for signs of wear, fraying, or weather damage. Clean the enclosure exterior to prevent dust from settling into the ventilation slots.
IP 65 (protected against dust and low-pressure water jets).
Regular maintenance is essential for safety and longevity. While the operator may be maintenance-free, the entire door system requires annual professional inspection.
Ensure correct clockwise phase rotation. If the motor runs backward when pressing the "Open" button, swap two phase wires (L1 and L2). Command Devices (Terminals)
: Mount the control housing in a spot where the operator can view the full path of the industrial door during travel.
Check the spiral cable running from the door panel to the junction box for cracks, tears, or stretching.
The Hörmann A445 (A/B 445) is an industrial door control unit for WA 400/ITO 400 operators, with comprehensive manuals covering installation, programming, and troubleshooting available online. These resources detail key operations, including limit setting, manual release procedures, and error code diagnostics. Access the detailed English instruction manual on Scribd . Hörmann A445 Instruction manual - Remootio
The general process involves:
supports the BiSecur (BS) system, allowing for hand transmitters (e.g., HE3 868-BS).