Good morning. Came home from vacation last night, doing my normal water testing this morning, went to check the temp and the readout said 74 and was dropping rapidly, like a degree a minute so something was malfunctioning. I put my old-school thermometer in and the water is 82 degrees. I have it set to 77.5 I recalibrated it and set it again to 77.5 so hopefully the water will slowly cool down. I cleaned the probe as well, it didn't seem to have much on it but thought it couldn't hurt. This is a JBJ Tru temp that is about a year and a half old. Is it time to replace it or do these sometimes malfunction like this? Thanks
