You’re missing a black knob. Get one. Then move the RED from lower right to lower left; move the BLUE from upper right to lower right; install the new BLACK upper right.
Diagrams show you they correct position of each of the four valves for different operational requirements.
Be sure all the knobs are installed so they rest in the proper positions when turned full in each direction. Looks like lower left (hot) turns 180 degrees, the other three turn 90 degrees. Refer to the panel diagrams.
Refer to panel diagrams to see position options for each valve in different scenarios.
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John and Diane (RIP Lincoln, 21 FEB 22) RVM103 NHSO
Fulltimers since June, 2012
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element
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