Ao Smith 100187860 Upper Temperature Probe

Product Description

The AO SMITH 100187860 is an upper temperature probe designed as a direct replacement component for water heater systems. The probe monitors water temperature in the upper tank zone, sending readings to the control system to regulate heating cycles and prevent overheating. This type of sensor is a critical safety and performance component in residential and light commercial water heating equipment. Licensed plumbers and HVAC technicians typically handle installation during routine service calls or control system diagnostics.

This probe is suited for use in water heater applications where the upper tank temperature must be accurately monitored. It is installed in the upper portion of the tank assembly and interfaces with the unit's control circuitry to maintain proper setpoint operation. Replacement is commonly performed when the existing probe has failed, is producing erratic temperature readings, or has been damaged during prior service work.

Key Features

• Monitors upper tank zone water temperature for accurate heating cycle control
• Direct OEM-style replacement for the original factory probe
• Compatible with AO SMITH water heater control systems requiring upper temperature sensing
• Supports safe operation by providing accurate input to the unit's thermal management controls

Compatibility

Designed as an OEM-style replacement upper temperature probe for AO SMITH water heater systems. Refer to the equipment service manual or consult AO SMITH technical support to confirm fitment for a specific model before ordering.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with local plumbing codes and the manufacturer's service documentation. Before replacing the probe, shut off power to the water heater at the breaker and allow the tank to cool sufficiently to avoid burns or pressure-related hazards. Depressurize the system per standard service procedure before disconnecting any components. Do not overtighten probe connections or force the sensor into place, as damage to the probe or tank fitting may result.

Technical Specifications

• Type: Replacement Part

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100187860