Upon arrival, hotwater generator water lines to geothermal unit were hot, indicating proper operation. Checked internal codes with Aurora Aide Tool. 127 HWG Limit codes since the last visit in June. These codes are present with normal operation and indicate the hot water generator it running properly. No issues found with geothermal hotwater generation equipment. Inspected hot water heater and found nothing wrong. But heating elements work properly. Increased hot water tank thermostat temperature slightly to help prolong hot water usage at a time by needing less to get to same temperature water. Other options for increased hot water capacity include installing a secondary hot water tank. This tank would be connected to electric to act as the main hot water tank, while the current tank would be disconnected from electricity as the geothermal would use the entire tank as a circulation tank and would preheat the water before going through to the main tank.