the issue lies further upstream in the thermostat or control circuit

The VG7000-6011 includes two precision-engineered PTFE V-rings and a specialized rubber V-ring to ensure a dynamic

Direct Interchangeability: Fully compatible with the SM185-3RI and SM185S3RC specifications for faster job site turnaround

Enhanced Flame Signal: Precision thermocouple ensures the gas valve receives a consistent millivolt signal to stay open

Lochinvar & A.O. Smith 100170487 Upper Sensor Freon the issue lies further upstreamThe Lochinvar & A. O. Smith 100170487 Upper Sensor (formerly TST1187) is a critical thermistor based component engineered for high precision temperature monitoring in residential and commercial water heaters. As a direct immersion NTC temperature sensor, it provides real time resistance feedback to the control board, ensuring the appliance maintains optimal setpoints while preventing dangerous high limit conditions. This OEM water heater sensor is