My tankless water heater was behaving erratically, with wild temperature fluctuations of water, so I called LG and the next morning they came and fixed the problem and now it works fine. It took about 20 minutes to diagnose the issue as it could have been many things, but they noticed a lot of scale buildup on the temperature sensor and said that's probably the cause, and sure enough it was. The cleaned off the scale, dusted the whole unit from the inside, and tightened the air intake and now it works great. Total job time was about 1 hour. There was no attempt to upsell or perform services I didn't need. The price was in line with industry standards, as there were two servicemen present, plus they have an office to maintain and they made an urgent house call. Their professionalism and honesty was beyond expectations, however. I will surely call them again if I need any service that they provide.
