Error code 49. The Motor Control Module has measured a voltage from the valve diagnostic circuit that indicates the cold valve is faulty. Open the panel & check that the wiring plug on the cold inlet valve is firmly in place. If ok then check the valve coil with an ohms meter to see if it is open circuit. If wiring & valve are ok then it may be a fault with the control module but is more likely a valve fault.
Lincoln Appliance NZ, October 2009