Nefit Bosch storing H01 / 5367 / 5448 / 5527

"5367 Alarm Z1 Superheat of refrigerant too low: "Alarm if 3 warnings are registered within 3 hours, or if the warning is active for 30 minutes." (warning 5366: "if suction gas overheating < 2 degreees and the discharge gas overheating < 20 degrees".) | 5448 Alarm Z1 Lack of refrigerant: "Alarm after 20 minutes if the electronic expansion valve VR0 has opened 20% more than calculated value." Possible cause: "Too little refrigerant in heat pump." / "Possible leak in refrigerant circuit." | 5527 Alarm Z1 Too much refrigerant in cooling circuit: "Alarm if JR1 > (TC3 + 5°C) and subcooling > set point value. Both conditions needs to be fulfilled for more than 5 minutes during hot water production." Possible cause: "Heat pump overfilled.""