The 45 Series Over Temperature Sensor is a critical safety component integrated into your 45 Series tankless water heater. Its primary function is to monitor the temperature within the system, ensuring it remains within safe operating limits.

This sensor acts as a guardian, constantly watching over the water heater's temperature. If the temperature rises to potentially hazardous levels, the sensor triggers a safety mechanism to shut down the water heater, preventing any risk of overheating or damage.

Here’s what to look for if you think your Over Temp Sensor is going bad:

Water Heater Shutdowns: If your tankless water heater frequently shuts down unexpectedly, it could be due to the Over Temperature Sensor activating the safety feature to prevent overheating.

Error Codes or Warnings: Some water heaters display error codes or use warning lights to signal temperature-related issues. Keep an eye out for any error messages or indicator lights linked to overheating concerns.

Visual Inspection: Occasionally, the sensor might face damage or wear. Inspect it for any signs of physical damage or corrosion that might compromise its functionality.

If you suspect problems with the 45 Series Over Temperature Sensor, consulting your 45 Series dedicated manual is advisable. The manual often contains specific troubleshooting steps tailored to your water heater model.

Maintaining a properly functioning Over Temperature Sensor is crucial for the safety and reliable operation of your tankless water heater, ensuring it always operates within safe temperature limits.

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