Bosch WAQ283S0GB/13 washing machine error e18 code

Hello The fault e18 is showing. I have checked the hoses; all fine. The pump appears to be working as the impeller blades are turning but no water is coming out the waste hose. When I open the filter cap on the drain cycle, gain the impeller blades are turn but no water is coming out the waste pipe. When I take off the filter cap/filter water pours out and empties the machine. Any ideas? COuld it be that the pump is not working to100% Thank you. Chris
Chris

There may be a problem with waste hose on your Bosch WAQ283S0GB/13, or the fitting under the sink if it is connected this way, there is also a chance that the blade has broken on the shaft of the pump so it looks like it is turning but under load it is not.

E18 error code will also display itself when the machine detects a blockage. Again check your drain hose.