Have a customer that has a small mom and pop bakery in an isolated area here.(everything here is isolated) Her LX30 H dishwasher is flashing a fault code of E5 once in a while. Then it won't let them run any dishes for an hour or 2. Pretty soon the thing will take off and run like champ for a few loads, until it flashes the fault code again and goes into lockdown. She asked me to take a look at it, and I gave it the once over. Everything seems to operate, except the heating for the reservoir in the bottom of the washer. Heating elements seem to heat OK, but I think the problem could be in the sensor(s). I have an owner's manual for it that I downloaded from Hobart. I can't get a service manual, and as a last resort, she called Hobart in the city. They want $430 to hit the door, and then hourly to repair it. I'm not a dishwasher tech, but I think with some printed matter and a little time, I could figure out what is causing this problem. Where do I go to get some tech help with this?