Thermostat Sensor (Thermister) Replacement Procedure

Step 1. Position main power switch to “OFF”

Step 2. Disconnect (unplug) water heater from 120 volt power source.

Step 3. Hot Surface Ignition Models: Drain water heater down to a point below the top of the tank.

Step 4. Un-latch and remove top surround cover from top of heater.

Step 5. Fold back insulation just in front of burner to expose temperature sensor (see photo below).

Step 6. Disconnect temperature sensor from harness (see photos at right).

Insulation folded back to expose temperature sensor

WARNING

120 volt potential exposure. Isolate the

appliance and reconfirm power is disconnected using a multi-meter.

Disconnect sensor

from harness

Hot Surface Ignition Models

Sensor shown fully

inserted into well

Sensor clip shown installed properly

Direct Spark Ignition Models

Step 7. Hot Surface Ignition Models: Remove temperature sensor (1-1/16" hex, deep well socket) from heater. Direct Spark Ignition Models: Unclip sensor from well and pull sensor to remove, do not remove well.

Note: Using a deep well socket will allow room inside socket for sensor connector and wires.

Step 8. Hot Surface Ignition Models: Apply thread sealing tape or applicable thread lubricant to threads of new

sensor. Install new thermostat sensor and Connect to wire harness from step 6.

Direct Spark Ignition Models: Install new sensor completely into well and reinstall sensor clip.

Step 9. Fold insulation back into place. Be sure there are no wires in contact with burner.

Step 10. Restore 120 volt power supply and water supply to water heater, check and repair any leaks found. Confirm proper operation following the lighting instructions on the lighting instruction label or the lighting instruction located in the installation and operating instruction manual.

Step 11. Replace surround cover on top of heater.

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Bradford-White Corp EF100T250(E)*(N Thermostat Sensor Thermister Replacement Procedure, Volt potential exposure. Isolate
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EFR160T120*(EN, EF100T250(E)*(N, EF100T399(E)*(N, EF100T300(E)*(N, EF60T125(E)*(N specifications

Bradford-White Corporation is a leading manufacturer of water heating solutions, known for its high-quality and durable products. Among its extensive product lineup, the EF60T150(E)*(N), EF100T150(E)*(N), EF60T199(E)*(N,X)(A)(2), and EF100T199(E)*(N) models stand out for their impressive features and technologies that cater to both residential and commercial water heating needs.

The EF60T150(E)*(N) model is designed for medium to large households, providing a reliable hot water supply. It features a 60-gallon tank with a first-hour delivery rate that ensures ample hot water, making it ideal for simultaneous usage in multiple applications. This water heater operates on natural gas, boasting high energy efficiency ratings due to its advanced burner technology. The environmentally friendly design reduces greenhouse gas emissions while delivering consistent performance.

Similarly, the EF100T150(E)*(N) model provides an even larger capacity of 100 gallons, addressing the hot water demands of larger families or commercial establishments. It employs Bradford-White's Hydrojet Total Performance System, which minimizes sediment buildup and optimizes hot water output. This model also features a patented Vitraglas lining that protects the tank from corrosion, extending its lifespan and enhancing reliability.

On the other hand, the EF60T199(E)*(N,X)(A)(2) and EF100T199(E)*(N) models offer advanced technology with their unique "N" designation, indicating that they are equipped to handle more extensive heating requirements efficiently. The EF60T199 model, with its 60-gallon capacity, and the EF100T199, with 100 gallons, incorporate enhanced insulation to reduce heat loss and improve energy efficiency. Both models are designed for easy installation and maintenance, making them user-friendly for both homeowners and technicians.

Additionally, these water heaters feature advanced electronic ignition and controls that allow for precise temperature regulation and easy monitoring. The intuitive user interface simplifies operation, while built-in safety features ensure reliable and secure hot water delivery.

Overall, Bradford-White's EF series of water heaters, including the EF60T150(E)*(N), EF100T150(E)*(N), EF60T199(E)*(N,X)(A)(2), and EF100T199(E)*(N), exemplify the company's commitment to quality and innovation. With their robust performance, energy efficiency, and advanced technologies, these models offer dependable hot water solutions tailored to meet the diverse needs of today's consumers. Whether for residential or commercial use, Bradford-White continues to set the standard for excellence in water heating technology.
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