I have a 40,000 gallon salt water pool. The lawn mower people cut my cable to the Aqua rite Tec 15 i had with original install. Since there is no way to replace the cord, i had to buy a new one. I installed by simply replacing unit, with Hayword GLX 15 and plugging in new cord to Board. The only light that comes on is the power light. The display works but it should read add salt, generating or something else when started up. I have checked the quarter sized capacitor and it is still solid, not brittle with no cracks. Any ideas what i did wrong?