Mark S Wilmington , NC September 01, 2015 Appliance: Model DLEX5170W Lg dryer runs but no heat This repair saved our lives! Error code of "nP" showed on a less than 2 year old dryer but a certified electrician checked and it isn't a house power issue regardless of what customer service guy from India says. Smart Diagnostic app showed no errors. No heat but everything else works fine. Thanks to the online videos, I figured it had to be either a thermometer, Thermistor or electronic board issue. I ordered the top 4 most-likely culprits for less than $50. I was quoted $100 just to get a repair man to show up at the house so we saved $50 right there. Thanks to online videos, taking apart the dryer was easy. If there were no other issues the repairs would have taken 30 minutes from start to finish BUT once the drum was removed we discovered that the LG factory did not attach the exhaust pipe to the blower fan (inside the unit) and lint has been flying into the interior of the dryer from day 1, including the heating element, motor, electronics, etc. No smell of burning was ever noticed but lots of very browned lint was in the heater element so it would be just a matter of time before a fire. At least a 1/4 inch of lint over the entire interior of the dryer. Cleaning the surfaces of lint took over an hour. Had to empty the Dyson canister 4x. Taped the pipe joint so this will never happen again. Talk about a factory defect that can kill your family! Never buying LG again even though we fixed the dryer and it works fine for just $50. But the knowledge that they would sell a dryer not assembled correctly in the factory scares the hell out of me. Your website saved us money which we really appreciate. Thank you! 416 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes