This has been noted on several thermistors, dryer model DLE3170W this time.
I get a lot of " not drying" or "not completely dry" work orders. Usually I can link them back to overloading or several pair of sweatpants or other thick items in the load, but not always. No error codes.
In this case, I verified that everything is working properly: Dryer vent clean to the outside, sensor bars scrubbed clean, elements ohming out OK, all thermostats working properly, so I went to the thermistor.
Resistance is 10.6k ohms at 71F ambient temp., but there was a buildup on the surface that looked like lime buildup but wiped off with a finger. I've changed two on different dryers this month, and in both cases there was residual moisture left in the dish-towel size terrycloth small loads run for a test on Normal Dry. We don't use fabric softener, either liquid or sheets. Detergent is measured with an automatic dispenser. In both cases, the towels stayed in the same shape that they were in when they came out of the washer instead of fluffing up - not twisted, but each piece keeping its wrinkles from the spin cycle. The test loads were done on Speed Wash, hot water, no detergent, since I just wanted an evenly wet load and the towels were already clean. Oh yeah, we're in a high lime area.
Can buildup on the thermistor cause this kind of a problem? The test loads were run after replacing the thermistors. Is there anything else I can look at?
Thanks.
