The first picture is of the bypass valve and it is on (not in bypass mode). If the hot water tank actually filled it is working. When it is turned to the vertical position (inline with the bypass water line going up to feed the hot water line) it is in bypass mode and water won't enter the water heater.
The rest of the pictures appear to be of the water pump. Is there an issue with it? Are you using it to pump water or are you using city water? Have you filled the fresh water tank if you're using the pump?
You say it is an 18 model. Is it new, or new to you? Have you used it previously? It takes a bit of sputtering, hissing and coughing before the hot water will begin to flow if it has been winterized, then dewinterized.
Danny & Susan wife of 53 years
2019 Ram 3500 Laramie CC SB 6.4 4x4 4.10
2020 Montana High Country 331RL