Iâ€™ve got a Whirlpool electric water heater and the water starting going cold. Went down and the green light was blinking saying to check lower element. Had no continuity so I put in a new one. Swapped out control board for good measure. It started throwing the code for check upper element but still produced hot water. Now, a week later, itâ€™s saying check lower element again! Tested the continuity and itâ€™s right around 14. Now weâ€™re getting luke warm water at best. What else could even be wrong??