Upsidedown in Scarborough

I had a furnace, AC and Tankless water heater installed about 9 years ago. Service was pretty good over the years, but recently my tankless water heater stopped working. It was well out of warranty, but one of the service suggestions from the manufacturer was to descale the unit. This is something I attempted a few years after the install, but I could not figure out how to use the bypass valves Cozy World put in. I did not make an effort to investigate as the unit was working fine, but now that I had to really use the bypass valves to troubleshoot the unit malfunction, I realized they had been installed UPSIDE DOWN. This was why I could not descale years ago, and now with no hot water it really added to my problems. Since this was an original install issue where code was not followed I fully expected Cozy World to correct the improperly installed valves. No such luck. This situation is similar to a manufacturing defect, there is no time limit here, it is not a warranty issue, it is a code issue and as a "licenced" HVAC company they are required to meet the terms of their licence, which means installing to code. Should give people pause about using a company that does not work to code nor is willing to fix their mistakes.