Hi @nicklemay
If it still doesn't work OK after you reinstall it, here's the [https://assets.ajmadison.com/ajmadison/itemdocs/A18520503.pdf|service data sheet] for the model ''series'', that may help.
It describes how to manually run a test cycle on the ice maker.
If there is a fault and a replacement part is required, here's a [https://www.searspartsdirect.com/model/55o5s3a3my-001428/frigidaire-frss2623as6-side-by-side-refrigerator-parts|parts list] that may be useful.
Scroll across to the ''ice maker parts diagram'' to find the part and then the ''part number'' for the part. Then search online using the ''part number only'' to find suppliers that suit you best.