Manufacturers often make changes to their product designs. This makes it harder for customers to find the parts that they need. Luckily, North Shore Commercial Door is here to make sure you have everything you need to make your garage door function again. This position encoder from Guardian Access and Door Hardware (part number GUDT-304) is compatible with model 628 operators as long as they were manufactured before February of 2012.
In order to identify whether your operator was manufactured before February 2012 customers need to locate the steel chassis of the opener. Here customers will find a barcode label with a serial number. If your serial number is lower that 12020001, then this encoder will work for you.
• Part Number GUDT-304
• For Guardian Models 628 manufactured before February 2012
• Models with Serial Numbers lower than 12020001 are compatible.