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Hi Guys, I have a 10 year old LG WM3431HS. I got a dHE code. Researched a bit on the internet and found that cleaning the lint out of the duct usually fixes the problem. Sure enough the duct was caked full of lint. I cleaned it all out, put it all together and still get the dHE code. I followed the service manual diagnostics. Fuse is good, Thermistors are good, Thermostat is good. Heater is good. I'm not getting 120VAC at the heater, which the service manual says is the main board. I bought a new main board, replaced it and still no change... I've also manually tested the heater by hooking it up to 120V and it works great. Is there some element I am missing here, or some component that is failed that is causing the main board not to send power to the heater? I feel like a fuse is blown or something is causing this error. I've been working on this for a couple of weeks and I'm really close to just calling a service guy. Part of me wonders if the service guy will have any more luck... Thanks for any help!! -Charles M