
100187859 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $80.95 | Condition is New, 100187859 Lochinvar 2.0" Blocked Outlet Switch OEM 100187859, shipping cost = $9.96 | 99.7% |
![]() | $89.66 | Top Pick! Condition is New, Lochinvar 100187859 2.0 Blocked Outlet Switch, FREE SHIPPING | ![]() |
![]() | $96.47 | Condition is New, Lochinvar & A.O. Smith 100187859 2.0" BLOCKED OUTLET SWITCH, FREE SHIPPING | 99.7% |
![]() | $164.00 | Condition is New, Lochinvar 100187859 Lochinvar 100187859 K,SWITCH,BLOCKED OUTLET,2.00"WC,NC, FREE SHIPPING | 100.0% |

The Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch is a crucial safety device designed to protect against potential hazards in water heating systems. This switch is specifically engineered to meet the stringent requirements of the American Water Heaters, Bradford White, and Rheem water heater brands.
The switch's primary function is to monitor the water flow rate in the heating system. It is designed to automatically turn off the water heater if the water flow rate drops below a certain level, indicating a potential blockage or restriction in the system's piping. This feature helps prevent overheating, which can lead to costly damages and even safety hazards.
The Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch is a durable and reliable component, constructed from high-quality materials to ensure long-lasting performance. The switch's housing is made of brass, which is resistant to corrosion and provides excellent electrical conductivity. The switch also features a stainless steel impeller, which is highly resistant to wear and tear, ensuring consistent and accurate flow rate measurements.
The installation process for the Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch is straightforward and can be completed by a qualified plumbing or HVAC professional. The switch is designed to fit standard 1/2-inch NPT threads, making it compatible with most water heater models. The switch also comes with clear installation instructions and all necessary mounting hardware.
In the event of a blocked outlet, the switch will activate an alarm, alerting users of the issue. The switch also has a resettable trip feature, allowing users to reset the switch once the blockage has been resolved. This feature ensures that the water heater can be safely and efficiently used once the issue has been addressed.
The Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch is an essential component for maintaining the safety and efficiency of water heating systems. By continuously monitoring water flow and automatically shutting off the water heater when necessary, this switch helps prevent costly damages, safety hazards, and potential code violations.
Pros and Cons of Buying Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch
The Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch is a safety device designed to protect against potential electrical hazards caused by blocked outlets. Let's explore the advantages and disadvantages of purchasing this switch.
Pros:1. Enhanced Safety: The blocked outlet switch helps prevent electrical fires and other hazards by cutting off power to an outlet when it is obstructed. This added layer of safety is crucial, especially in homes with children or pets.
2. Easy Installation: This switch can be easily installed in place of a standard outlet, making it a convenient solution for enhancing electrical safety in your home.
3. Cost-Effective: Compared to other safety devices, the Lochinvar A.O. Smith 2.0 Blocked Outlet Switch is relatively affordable.
4. Universal Compatibility: This switch can be used with both 120V and 240V circuits, making it a versatile option for various electrical applications.
Cons:1. Limited Functionality: The blocked outlet switch only serves to disconnect power when an outlet is obstructed. It does not provide any other safety features, such as GFCI or AFCI protection.
2. Requires Constant Monitoring: The switch relies on physical obstruction to disconnect power. It may not detect small objects that can potentially cause electrical issues, such as wires or hair.
3. May Not Fit All Outlets: The switch may not fit all outlet types, particularly those with unique designs or additional features.
Ending Conclusion:The Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch offers enhanced safety by disconnecting power when an outlet is obstructed. Its easy installation, cost-effectiveness, and universal compatibility make it a worthwhile investment for homeowners. However, it has its limitations, including limited functionality and the need for constant monitoring. Ultimately, the decision to purchase this switch depends on your specific electrical safety needs and preferences.
Recommendation:If you're looking for an affordable and easy-to-install solution to enhance electrical safety in your home, the Lochinvar A.O. Smith 100187859 2.0 Blocked Outlet Switch is a solid choice. However, it should not be your only safety device, and you should consider other safety features, such as GFCI and AFCI protection, to ensure complete electrical safety in your home.
Details:
Smith blocked outlet switch, 100187859.
specifications maxohvac:
- brand: Lochinvar A.o. Smith
- mpn: 100187859
- part type: Switch
returns maxohvac:
- policy: no returns
shipping maxohvac:
- service: usps ground advantage
- carrier: usps
- transit: 4-9 days
- type: calculated
- class: standard
offer maxohvac:
- options: ship-to-home
- best offers: true
- sold #: 15
- availability: in stock
- prices: $80.95–$164.00
- item condition: New
- started: november 3, 2025
- in stock #: 4
seller maxohvac:
- rating: 100.0%
- city: conroe, texas
- # reviews: 5
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- credit card: discover
- other
- wallet: apple-pay
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