Samsung Heat pump fault codes

10 codes from the Samsung manual for the Heat pump heat pump. Pick one for what it means, the likely causes and where to start.

Code	What it means
E904	Water tank sensor short/open
E906	Outdoor EVA in sensor error
E907	Pipe rupture protection error
E910	Water temperature sensor detached
E911	Minimum water flow rate not met
E912	Flow switch close error
E913	Flow switch error detected six times (re-operation impossible)
E914	Incorrect thermostat connection
E915	DC fan non-operating
E916	Mixing sensor short/open