A Rinnai 105002045 Thermistor/Sensor tracks surface temperature and relays readings for responsive control within the HVAC assembly.
The thermistor/sensor monitors surface temperature and relays that information to the control system so the HVAC equipment can regulate operation accurately and respond to changing conditions. Its surface-mount design matters because it allows direct contact at the measurement point, improving temperature sensing consistency and supporting dependable performance in the HVAC system.
The thermistor/sensor may need to be replaced if the heating and cooling equipment shows erratic temperature readings, inconsistent cycling or reduced response to control adjustments. Common indicators include visible damage, loose mounting, corrosion or wear from heat and moisture exposure that could affect sensor accuracy.
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