Lochinvar & A.O. Smith 100166108 Pressure Switch
Professionals in the field know that the Lochinvar & A.O. Smith 100166108 Pressure Switch is a critical safety component designed for precise draft proving in high-efficiency condensing boilers and commercial water heaters. This OEM replacement part is engineered to monitor the negative pressure of the inducer motor, ensuring the venting system is clear of obstructions before allowing the ignition sequence to proceed. When a blocked flue or failed inducer causes the pressure switch to stay open, the control board will trigger a safety lockout to prevent the accumulation of flue gases.
Built for the rigorous demands of HVAC repair, the 100166108 provides the exact inches water column (in. W.C.) set point required by Lochinvar Knight and A.O. Smith Cyclone series units. Maintaining a sealed combustion system depends on the integrity of this diaphragm-based switch. Replacing a degraded or sticking switch with this factory-authorized Lochinvar part ensures system compatibility and eliminates the short cycling or ignition failure issues often seen with generic alternatives. This switch is designed for seamless integration with existing vacuum tubing and electrical spade connectors, reducing contractor downtime on the job site.
Key Benefits- Precise Calibration: Factory-set to specific in. W.C. parameters for reliable safety lockout protection.
- OEM Compatibility: Exact fit for Lochinvar and A.O. Smith applications, ensuring the sequence of operation remains within manufacturer specifications.
- Durable Construction: Engineered to withstand the thermal cycling and moisture typical of condensing water heater environments.
- Contractor Grade: Simplifies HVAC troubleshooting by providing consistent switching points for draft verification.
How do I troubleshoot a pressure switch lockout?
Verify the inducer motor is reaching full speed and check for vent blockages or moisture in the pressure tubing. Use a manometer to confirm the system is generating the required negative pressure to close the switch contacts.
Can I use a generic pressure switch as a substitute?
Using non-OEM switches is not recommended for Lochinvar or A.O. Smith units. Subtle differences in the activation point can cause nuisance fault codes or compromise the safe operation of the burner.
What causes these switches to fail?
Common culprits include diaphragm dry rot, soot buildup in the sensing port, or cracked vacuum hoses. Regular maintenance of the heat exchanger and venting assembly can prolong component life.
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: $50.96
-65%$50.96
$17.84Lochinvar & A.O. Smith 100166108 Pressure Switch
Professionals in the field know that the Lochinvar & A.O. Smith 100166108 Pressure Switch is a critical safety component designed for precise draft proving in high-efficiency condensing boilers and commercial water heaters. This OEM replacement part is engineered to monitor the negative pressure of the inducer motor, ensuring the venting system is clear of obstructions before allowing the ignition sequence to proceed. When a blocked flue or failed inducer causes the pressure switch to stay open, the control board will trigger a safety lockout to prevent the accumulation of flue gases.
Built for the rigorous demands of HVAC repair, the 100166108 provides the exact inches water column (in. W.C.) set point required by Lochinvar Knight and A.O. Smith Cyclone series units. Maintaining a sealed combustion system depends on the integrity of this diaphragm-based switch. Replacing a degraded or sticking switch with this factory-authorized Lochinvar part ensures system compatibility and eliminates the short cycling or ignition failure issues often seen with generic alternatives. This switch is designed for seamless integration with existing vacuum tubing and electrical spade connectors, reducing contractor downtime on the job site.
Key Benefits- Precise Calibration: Factory-set to specific in. W.C. parameters for reliable safety lockout protection.
- OEM Compatibility: Exact fit for Lochinvar and A.O. Smith applications, ensuring the sequence of operation remains within manufacturer specifications.
- Durable Construction: Engineered to withstand the thermal cycling and moisture typical of condensing water heater environments.
- Contractor Grade: Simplifies HVAC troubleshooting by providing consistent switching points for draft verification.
How do I troubleshoot a pressure switch lockout?
Verify the inducer motor is reaching full speed and check for vent blockages or moisture in the pressure tubing. Use a manometer to confirm the system is generating the required negative pressure to close the switch contacts.
Can I use a generic pressure switch as a substitute?
Using non-OEM switches is not recommended for Lochinvar or A.O. Smith units. Subtle differences in the activation point can cause nuisance fault codes or compromise the safe operation of the burner.
What causes these switches to fail?
Common culprits include diaphragm dry rot, soot buildup in the sensing port, or cracked vacuum hoses. Regular maintenance of the heat exchanger and venting assembly can prolong component life.
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
Professionals in the field know that the Lochinvar & A.O. Smith 100166108 Pressure Switch is a critical safety component designed for precise draft proving in high-efficiency condensing boilers and commercial water heaters. This OEM replacement part is engineered to monitor the negative pressure of the inducer motor, ensuring the venting system is clear of obstructions before allowing the ignition sequence to proceed. When a blocked flue or failed inducer causes the pressure switch to stay open, the control board will trigger a safety lockout to prevent the accumulation of flue gases.
Built for the rigorous demands of HVAC repair, the 100166108 provides the exact inches water column (in. W.C.) set point required by Lochinvar Knight and A.O. Smith Cyclone series units. Maintaining a sealed combustion system depends on the integrity of this diaphragm-based switch. Replacing a degraded or sticking switch with this factory-authorized Lochinvar part ensures system compatibility and eliminates the short cycling or ignition failure issues often seen with generic alternatives. This switch is designed for seamless integration with existing vacuum tubing and electrical spade connectors, reducing contractor downtime on the job site.
Key Benefits- Precise Calibration: Factory-set to specific in. W.C. parameters for reliable safety lockout protection.
- OEM Compatibility: Exact fit for Lochinvar and A.O. Smith applications, ensuring the sequence of operation remains within manufacturer specifications.
- Durable Construction: Engineered to withstand the thermal cycling and moisture typical of condensing water heater environments.
- Contractor Grade: Simplifies HVAC troubleshooting by providing consistent switching points for draft verification.
How do I troubleshoot a pressure switch lockout?
Verify the inducer motor is reaching full speed and check for vent blockages or moisture in the pressure tubing. Use a manometer to confirm the system is generating the required negative pressure to close the switch contacts.
Can I use a generic pressure switch as a substitute?
Using non-OEM switches is not recommended for Lochinvar or A.O. Smith units. Subtle differences in the activation point can cause nuisance fault codes or compromise the safe operation of the burner.
What causes these switches to fail?
Common culprits include diaphragm dry rot, soot buildup in the sensing port, or cracked vacuum hoses. Regular maintenance of the heat exchanger and venting assembly can prolong component life.
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.
