The GE GeoSpring hybrid water heater model number GEH50DNSRSA is widely reported to be defective because several parts have consistently failed, particularly the evaporator coils. So maybe a bit unrelated butwith the help of my FIL who is a liscenced electrician we just installed a generator switch for my house. If you get the F1 and beep, replace the ERC. Click below on the size code your universal remote is requesting. Also, I believe there is a 10 year warranty on parts, but not sure if GE would send me the needed part based on these codes.