I have a Dream Maker x-spa Dition 4 person spa. i

Did you find a solution to this? Mine is doing the same thing.

If it's loosing water this should be a structure warranty. I have two of these and had to drain the spa and shine a light in the spa and take pictures from underneath. Then the light will show off the cracks well. If your the original owner just keep at Dream maker, they should give you a new one.

The Dream Maker Company (Dream Maker Spas, LLC) will be your best bet at finding a local service center in your area.
Email Customer Service @ [email protected]. You will normally receive a response in 24 hours. Be detailed about your location (City, State, Zip) and try to provide as much detail about your spa as possible.
Good luck!

I have this exact same problem on my dream maker ez spa for the last few years and can`t trace it .

Hard to say without being there. Two things to check though. First be sure the new board is the correct one. Many times parts will change and replacements will have special instructions for retrofitting.
The other thing to check is be very sure the plug on the new board lines up with the receptor. On a multi pin plug if the pins don't line up you can get just the problem you describe. I hope this helps, sorry it can't be more.