We had a Kenmore Elite Trio refrigerator installed a couple of days ago. The installers hooked up the existing water line to the ice maker/water dispenser. It was working while they were there. The installers did not push the refrigerator into the location because we had to trim a cabinet. My husband trimmed the cabinet and moved the fridge back into the correct location but crimped the copper water line. Water would not flow to the dispenser. From the basement, he removed the crimped section and reattached it. He also checked and cleaned out the filter nearby. The water will flow clear through the filter but does not reach the refrigerator. What else do we need to check before we call a plumber?