Hello Kelley. The black set screw is 1/4" and requires a 1/8" allen wrench. They are definitely easy to misplace. A lot of times people will think they are missing, but they are actually deep down inside the coupler and very hard to see. If you shine a light down in the hole and see black, the set screw is down in there. view full answer...
Hi Jim,
If your Fogatti RV Tankless Water Heater # LSB64FR is turning on but not sensing when water is passing through then you could either have a bad water flow sensor or there's the possibility that you have a shut off valve somewhere leading to the unit that could be turned off. A lot of RV's will install quarter-turn valves to separate the water heater from the rest of the plumbing so that they can run anti-freeze through the lines for winter. I recommend checking that your unit... view full answer...