Lochinvar & A.O. Smith 100112660 Pressure Switch
The Lochinvar & A.O. Smith 100112660 Pressure Switch is a critical safety component designed for high-efficiency water heaters and boilers. This 0.99" WC pressure switch ensures the inducer motor is moving sufficient air and generating the correct draft before the ignition sequence begins. Engineered to prevent hazardous conditions, it acts as a fail-safe that locks out the burner if it detects venting blockages or blower failure. This genuine OEM replacement part is identical to part numbers IS20451-6170 and NS2-1306-02, offering a precise electrical and mechanical fit for various Lochinvar and A.O. Smith commercial and residential models.
For veteran technicians, the 100112660 is the go-to solution for resolving common error codes related to "Pressure Switch Failed Open" or "TCO Open" faults. Its durable construction is built to withstand the high-cycle demands of modern HVACR systems, maintaining consistent calibration across its lifespan. When diagnosing ignition failure or short-cycling, always verify that the pressure tubing is clear of condensate and that the brass barb on the blower housing is not obstructed, as these are frequent external causes of switch-related lockouts.
Key Benefits:- Precise 0.99" WC Set Point: Factory-calibrated for accurate draft detection, ensuring the system only fires under safe operating conditions.
- Broad Cross-Compatibility: Directly replaces NS2-1306-02 and IS20451-6170, simplifying inventory for contractors.
- Genuine OEM Reliability: Manufactured to the original specifications of A.O. Smith and Lochinvar for a drop-in installation without field modifications.
- System Protection: Effectively prevents overheating and the accumulation of unburnt gases by monitoring air pressure in real-time.
What does a 3-flash error code mean on my A.O. Smith water heater?
A 3-flash code typically indicates that the pressure switch is failed open or the TCO has tripped. If the inducer motor is running but the igniter isn't glowing, the 100112660 may not be sensing enough draft to close the circuit.
Can I use this as a universal replacement?
No. This is a model-specific switch rated at 0.99 inches of water column. Using a switch with a different rating can result in unsafe operation or frequent system lockouts. Always match the part number to your specific unit’s serial number.
Why is my new pressure switch not closing?
If the switch is new, ensure the sensing tube is not cracked, kinked, or clogged with moisture. Also, check the blower motor speed and the exhaust vent for obstructions like bird nests or debris that could impede the required pressure.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $51.11
-65%$51.11
$17.89Lochinvar & A.O. Smith 100112660 Pressure Switch
The Lochinvar & A.O. Smith 100112660 Pressure Switch is a critical safety component designed for high-efficiency water heaters and boilers. This 0.99" WC pressure switch ensures the inducer motor is moving sufficient air and generating the correct draft before the ignition sequence begins. Engineered to prevent hazardous conditions, it acts as a fail-safe that locks out the burner if it detects venting blockages or blower failure. This genuine OEM replacement part is identical to part numbers IS20451-6170 and NS2-1306-02, offering a precise electrical and mechanical fit for various Lochinvar and A.O. Smith commercial and residential models.
For veteran technicians, the 100112660 is the go-to solution for resolving common error codes related to "Pressure Switch Failed Open" or "TCO Open" faults. Its durable construction is built to withstand the high-cycle demands of modern HVACR systems, maintaining consistent calibration across its lifespan. When diagnosing ignition failure or short-cycling, always verify that the pressure tubing is clear of condensate and that the brass barb on the blower housing is not obstructed, as these are frequent external causes of switch-related lockouts.
Key Benefits:- Precise 0.99" WC Set Point: Factory-calibrated for accurate draft detection, ensuring the system only fires under safe operating conditions.
- Broad Cross-Compatibility: Directly replaces NS2-1306-02 and IS20451-6170, simplifying inventory for contractors.
- Genuine OEM Reliability: Manufactured to the original specifications of A.O. Smith and Lochinvar for a drop-in installation without field modifications.
- System Protection: Effectively prevents overheating and the accumulation of unburnt gases by monitoring air pressure in real-time.
What does a 3-flash error code mean on my A.O. Smith water heater?
A 3-flash code typically indicates that the pressure switch is failed open or the TCO has tripped. If the inducer motor is running but the igniter isn't glowing, the 100112660 may not be sensing enough draft to close the circuit.
Can I use this as a universal replacement?
No. This is a model-specific switch rated at 0.99 inches of water column. Using a switch with a different rating can result in unsafe operation or frequent system lockouts. Always match the part number to your specific unit’s serial number.
Why is my new pressure switch not closing?
If the switch is new, ensure the sensing tube is not cracked, kinked, or clogged with moisture. Also, check the blower motor speed and the exhaust vent for obstructions like bird nests or debris that could impede the required pressure.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lochinvar & A.O. Smith 100112660 Pressure Switch is a critical safety component designed for high-efficiency water heaters and boilers. This 0.99" WC pressure switch ensures the inducer motor is moving sufficient air and generating the correct draft before the ignition sequence begins. Engineered to prevent hazardous conditions, it acts as a fail-safe that locks out the burner if it detects venting blockages or blower failure. This genuine OEM replacement part is identical to part numbers IS20451-6170 and NS2-1306-02, offering a precise electrical and mechanical fit for various Lochinvar and A.O. Smith commercial and residential models.
For veteran technicians, the 100112660 is the go-to solution for resolving common error codes related to "Pressure Switch Failed Open" or "TCO Open" faults. Its durable construction is built to withstand the high-cycle demands of modern HVACR systems, maintaining consistent calibration across its lifespan. When diagnosing ignition failure or short-cycling, always verify that the pressure tubing is clear of condensate and that the brass barb on the blower housing is not obstructed, as these are frequent external causes of switch-related lockouts.
Key Benefits:- Precise 0.99" WC Set Point: Factory-calibrated for accurate draft detection, ensuring the system only fires under safe operating conditions.
- Broad Cross-Compatibility: Directly replaces NS2-1306-02 and IS20451-6170, simplifying inventory for contractors.
- Genuine OEM Reliability: Manufactured to the original specifications of A.O. Smith and Lochinvar for a drop-in installation without field modifications.
- System Protection: Effectively prevents overheating and the accumulation of unburnt gases by monitoring air pressure in real-time.
What does a 3-flash error code mean on my A.O. Smith water heater?
A 3-flash code typically indicates that the pressure switch is failed open or the TCO has tripped. If the inducer motor is running but the igniter isn't glowing, the 100112660 may not be sensing enough draft to close the circuit.
Can I use this as a universal replacement?
No. This is a model-specific switch rated at 0.99 inches of water column. Using a switch with a different rating can result in unsafe operation or frequent system lockouts. Always match the part number to your specific unit’s serial number.
Why is my new pressure switch not closing?
If the switch is new, ensure the sensing tube is not cracked, kinked, or clogged with moisture. Also, check the blower motor speed and the exhaust vent for obstructions like bird nests or debris that could impede the required pressure.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
