I replaced the rollers on my HE4. Not a difficult repair at all but it did require a bit of teardown of the machine. I buttoned everything up i it was as smooth as the day we bought it. I started a load in the dryer and went to get a beer to congratulate myself. Not two mins into the cycle....E1 error code. I remember changing the coil and thermistor last year. I was !#^&@@. Fearing that I was going to have to tear this thing down again AND break out the multimeter, i decided to look it up here. Five screws later and there was the 8 pin connector...hanging loose. Buttoned her back up and it's running like a charm.