AO Smith 100108422 Water Heater Thermostat

Water Heater Thermostat AO Smith 100108422 delivers precise temperature control for electric water heaters. This lower-type thermostat is designed as a replacement part for AO Smith electric water heaters and includes a protective cover for safe operation.

A reliable component for maintaining steady hot water temperatures, this thermostat helps protect your system from overheating while simplifying maintenance. Built for straightforward replacement, it pairs with the lower mounting style used on many electric AO Smith models.

This lower thermostat provides reliable response to temperature changes, helping prevent short cycling and keeping hot water within a comfortable range. Built as a practical upgrade or replacement part, it supports easy installation and steady system performance in AO Smith electric water heaters. Ideal for DIY homeowners and service pros seeking a dependable AO Smith replacement part.

• Lower-type thermostat designed specifically for electric water heaters and their lower mounting
• Includes protective cover for safe handling and durable, long-lasting operation
• Part number 100108422, AO Smith replacement part compatible with common models
• Helps maintain accurate temperature control, improving comfort and energy efficiency
• Easy retrofit for compatible AO Smith electric water heater units