Pride Plumbing came out to call technical support on a 120-gallon State water heater that was displaying error code 1B0-0. Technical support helped us to determine that there was an issue with the unit's electrical outlet. The water heater should have had a designated circuit but if there was something else on the circuit pulling power, on the same breaker, it could cause issues with the unit's ability to heat the water. We also provided a cost estimate to replace the unit with a new Navien tankless model with a NAVICIRC recirculation pump.