Lochinvar & A.O. Smith 100208386 Pressure Switch Kit
The Lochinvar & A.O. Smith 100208386 Pressure Switch Kit is a critical safety component designed for precise combustion monitoring in high-efficiency water heaters and boiler systems. This 2.25 inch WC pressure switch serves as a blower prover, ensuring the inducer fan generates sufficient vacuum to safely vent combustion gases before allowing the ignition sequence to proceed. Engineered for A.O. Smith, Lochinvar, and State equipment, this genuine OEM gas pressure switch protects the heat exchanger from improper venting conditions caused by bird nests, heavy frost, or degraded blower performance. When diagnosing a 3-flash error code on an HVAC system, replacing an out-of-tolerance switch with this factory-calibrated kit restores reliable operation. The 100208386 features a durable diaphragm and high-grade electrical contacts to withstand the constant cycling of commercial and residential power-vented units. For service professionals, keeping this boiler replacement part on the truck is essential for rapid furnace repair and maintaining system air-fuel ratios.
Key Benefits:
- Precise 2.25" WC Set Point: Factory-calibrated to ensure the ignition control receives a definitive "prove" signal only when safe venting pressure is achieved.
- OEM Compatibility: Engineered specifically for Lochinvar and A.O. Smith applications, eliminating the calibration risks associated with universal "one-size-fits-all" switches.
- Enhanced Safety Monitoring: Prevents gas valve activation during HVAC installation or operation if the flue or intake air piping is obstructed.
- Complete Kit Solution: Includes necessary components for a standard field replacement, reducing downtime for the end-user.
- High-Efficiency Reliability: Built to handle the specific condensate and pressure variables found in modern high-performance condensing water heaters.
Common Questions:
- What causes a pressure switch to stay open? Most often, this is caused by a blocked vent pipe, a kinked sensing tube, moisture (condensate) buildup in the lines, or a failing inducer motor that cannot reach the required 2.25" WC.
- Can I use a switch with a different WC rating? No. Using a switch with a lower or higher water column rating will compromise the safety of the unit and may trigger persistent error codes or unsafe combustion.
- Is this switch for the air intake or the exhaust? While it varies by model, this unit is typically utilized as a blower prover to verify that the exhaust system is clear and the fan is operational.
This item is not eligible for free shipping.
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: $68.31
-65%$68.31
$23.91Lochinvar & A.O. Smith 100208386 Pressure Switch Kit
The Lochinvar & A.O. Smith 100208386 Pressure Switch Kit is a critical safety component designed for precise combustion monitoring in high-efficiency water heaters and boiler systems. This 2.25 inch WC pressure switch serves as a blower prover, ensuring the inducer fan generates sufficient vacuum to safely vent combustion gases before allowing the ignition sequence to proceed. Engineered for A.O. Smith, Lochinvar, and State equipment, this genuine OEM gas pressure switch protects the heat exchanger from improper venting conditions caused by bird nests, heavy frost, or degraded blower performance. When diagnosing a 3-flash error code on an HVAC system, replacing an out-of-tolerance switch with this factory-calibrated kit restores reliable operation. The 100208386 features a durable diaphragm and high-grade electrical contacts to withstand the constant cycling of commercial and residential power-vented units. For service professionals, keeping this boiler replacement part on the truck is essential for rapid furnace repair and maintaining system air-fuel ratios.
Key Benefits:
- Precise 2.25" WC Set Point: Factory-calibrated to ensure the ignition control receives a definitive "prove" signal only when safe venting pressure is achieved.
- OEM Compatibility: Engineered specifically for Lochinvar and A.O. Smith applications, eliminating the calibration risks associated with universal "one-size-fits-all" switches.
- Enhanced Safety Monitoring: Prevents gas valve activation during HVAC installation or operation if the flue or intake air piping is obstructed.
- Complete Kit Solution: Includes necessary components for a standard field replacement, reducing downtime for the end-user.
- High-Efficiency Reliability: Built to handle the specific condensate and pressure variables found in modern high-performance condensing water heaters.
Common Questions:
- What causes a pressure switch to stay open? Most often, this is caused by a blocked vent pipe, a kinked sensing tube, moisture (condensate) buildup in the lines, or a failing inducer motor that cannot reach the required 2.25" WC.
- Can I use a switch with a different WC rating? No. Using a switch with a lower or higher water column rating will compromise the safety of the unit and may trigger persistent error codes or unsafe combustion.
- Is this switch for the air intake or the exhaust? While it varies by model, this unit is typically utilized as a blower prover to verify that the exhaust system is clear and the fan is operational.
This item is not eligible for free shipping.
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.
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Description
The Lochinvar & A.O. Smith 100208386 Pressure Switch Kit is a critical safety component designed for precise combustion monitoring in high-efficiency water heaters and boiler systems. This 2.25 inch WC pressure switch serves as a blower prover, ensuring the inducer fan generates sufficient vacuum to safely vent combustion gases before allowing the ignition sequence to proceed. Engineered for A.O. Smith, Lochinvar, and State equipment, this genuine OEM gas pressure switch protects the heat exchanger from improper venting conditions caused by bird nests, heavy frost, or degraded blower performance. When diagnosing a 3-flash error code on an HVAC system, replacing an out-of-tolerance switch with this factory-calibrated kit restores reliable operation. The 100208386 features a durable diaphragm and high-grade electrical contacts to withstand the constant cycling of commercial and residential power-vented units. For service professionals, keeping this boiler replacement part on the truck is essential for rapid furnace repair and maintaining system air-fuel ratios.
Key Benefits:
- Precise 2.25" WC Set Point: Factory-calibrated to ensure the ignition control receives a definitive "prove" signal only when safe venting pressure is achieved.
- OEM Compatibility: Engineered specifically for Lochinvar and A.O. Smith applications, eliminating the calibration risks associated with universal "one-size-fits-all" switches.
- Enhanced Safety Monitoring: Prevents gas valve activation during HVAC installation or operation if the flue or intake air piping is obstructed.
- Complete Kit Solution: Includes necessary components for a standard field replacement, reducing downtime for the end-user.
- High-Efficiency Reliability: Built to handle the specific condensate and pressure variables found in modern high-performance condensing water heaters.
Common Questions:
- What causes a pressure switch to stay open? Most often, this is caused by a blocked vent pipe, a kinked sensing tube, moisture (condensate) buildup in the lines, or a failing inducer motor that cannot reach the required 2.25" WC.
- Can I use a switch with a different WC rating? No. Using a switch with a lower or higher water column rating will compromise the safety of the unit and may trigger persistent error codes or unsafe combustion.
- Is this switch for the air intake or the exhaust? While it varies by model, this unit is typically utilized as a blower prover to verify that the exhaust system is clear and the fan is operational.
This item is not eligible for free shipping.
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.
