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The CAMCO 8123 is a lower-element thermostat designed for residential electric water heaters using the TOD (Tilt-Over-Dead) style configuration. It fits E, F, and S style water heater applications and controls the lower heating element by cycling power based on water temperature in the tank. Licensed plumbers and water heater technicians install this part during thermostat replacement service calls or as part of a full element-and-thermostat overhaul. At 0.2205 pounds, it is a lightweight, direct-replacement component built to OEM-style fit standards.
This thermostat is intended for use in residential electric water heater tanks where a lower-position thermostat controls the bottom heating element. TOD-style thermostats are commonly found in standard tank-type electric water heaters across residential and light commercial applications. Installation applies to E, F, and S style heater configurations. This part corresponds to the same fit and function as part number 08122 and 08123 within the CAMCO product line.
Designed as an OEM-style replacement lower thermostat for residential electric water heaters using the TOD style configuration in E, F, and S style applications. Cross-references with CAMCO part numbers 08122 and 08123.
A licensed plumber or water heater technician should perform this replacement. Before servicing, shut off electrical power to the water heater at the breaker and verify the circuit is de-energized with a non-contact voltage tester. Access the lower thermostat by removing the lower access panel and insulation. Follow local plumbing and electrical codes, which may include IPC and NEC requirements, when performing water heater component service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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