ATA GDO-4 Spare Parts
ATAâ„¢ Ring Gear
Suitable for use on
GDO-4v2 Roller Door Openers.
When might you need this?
The opener is making a shuddering sound, and may stall during operation.
Note – The ridges on the GDO-4v2 and the GDO-4v4 ring gear are different as can be seen in the top-right of each picture. Ensure that you are purchasing the correct product as they are not interchangeable.
ATAâ„¢ Torroidal TransformerATAâ„¢ Product Counter
Suitable for use on
GDO-4 Roller Door Openers Utilizing ALPS
(Automatic Limits Programming System).
When might you need this?
The ALPS opener is not allowing you to set opening and closing positions. Alternatively, you may find that it allows limits to set, but then the opener ceases to operate once limits have been set.

