A:AnswerYes, the descale cycle is approximately 55 minutes on this model. To learn more, check out the “Starting your Descale” section on page 8 of the most up to date Owner’s Manual, which can be viewed on our GE Appliances website. Lauren@GEAppliances
A:AnswerI just recently had this issue with "mush" ice. it turns out all it needed was a REALLY GOOD descaling from using hard water. It had started making this weird squealing noise and making the half melted ice. Once i read thru the manual and found out to properly descale it, i did. Except instead of letting it sit for 18 hours after running a cleaning cycle, i let it sit for 2 days, and the amount of scale that came out was gross. So, in my opinion, try that and see if it helps.
A:AnswerThe side tank we offer as an accessory is the 3/4 gallon - P4AAKASSPSS. The 1 gallon side tank is included with select model Opals and is not listed as a separate accessory. We encourage you to reach out to Opal Support at 1-866-907-6718 for additional assistance.