Call GE
Otherwise there are few service manuals for this line of products
http://waterheatertimer.org/GE-heat-pump-manuals-by-date.html

http://waterheatertimer.org/pdf/Geo-spring-hybrid-troubleshoot-error-codes-2012.pdf

http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html

Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7