Lennox 63W56 Pressure Switch
The Lennox 63W56 Pressure Switch is a dual-stage combustion air prover designed for precise draft monitoring in high-efficiency gas furnaces. This SPST normally open switch features dual setpoints of 0.35" WC and 0.60" WC, facilitating the sequenced operation required for two-stage heating cycles. Engineered as a direct OEM replacement part, it ensures the inducer motor maintains proper static pressure before allowing the ignition sequence to proceed. The 63W56 is critical for detecting venting obstructions or inducer failures, providing essential safety interlocking for the control board. For contractors performing Lennox furnace repair, this component offers reliable calibration and terminal alignment for seamless field installation. Its robust diaphragm construction resists fluctuating pressures, ensuring stable performance across high and low fire stages. When diagnosing furnace pressure switch stuck open errors, verify the vacuum tubing and collector box integrity to ensure this switch receives accurate pneumatic signals for consistent circuit closure.
- Dual-Stage Calibration: Pre-set at 0.35" and 0.60" WC for accurate two-stage inducer monitoring.
- OEM Reliability: Direct replacement for several Lennox 80% and 90% AFUE furnace models.
- Enhanced Safety: Standard SPST N/O configuration prevents ignition during insufficient venting conditions.
- Durable Housing: Built to withstand high-temperature environments within the burner cabinet.
How do I troubleshoot a 63W56 pressure switch error code?
Check for blocked vent pipes, a failing inducer motor, or cracked vacuum tubing. If the switch fails to close under the specified 0.35/0.60" WC load, it likely requires replacement.
Is this switch compatible with multi-speed inducer blowers?
Yes, the 63W56 is specifically designed to handle the variable static pressure requirements of two-stage combustion systems.
What causes these switches to fail prematurely?
Most failures result from moisture intake in the diaphragm or electrical arcing at the terminals due to high resistance.
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: $57.41
-65%$57.41
$20.09Lennox 63W56 Pressure Switch
The Lennox 63W56 Pressure Switch is a dual-stage combustion air prover designed for precise draft monitoring in high-efficiency gas furnaces. This SPST normally open switch features dual setpoints of 0.35" WC and 0.60" WC, facilitating the sequenced operation required for two-stage heating cycles. Engineered as a direct OEM replacement part, it ensures the inducer motor maintains proper static pressure before allowing the ignition sequence to proceed. The 63W56 is critical for detecting venting obstructions or inducer failures, providing essential safety interlocking for the control board. For contractors performing Lennox furnace repair, this component offers reliable calibration and terminal alignment for seamless field installation. Its robust diaphragm construction resists fluctuating pressures, ensuring stable performance across high and low fire stages. When diagnosing furnace pressure switch stuck open errors, verify the vacuum tubing and collector box integrity to ensure this switch receives accurate pneumatic signals for consistent circuit closure.
- Dual-Stage Calibration: Pre-set at 0.35" and 0.60" WC for accurate two-stage inducer monitoring.
- OEM Reliability: Direct replacement for several Lennox 80% and 90% AFUE furnace models.
- Enhanced Safety: Standard SPST N/O configuration prevents ignition during insufficient venting conditions.
- Durable Housing: Built to withstand high-temperature environments within the burner cabinet.
How do I troubleshoot a 63W56 pressure switch error code?
Check for blocked vent pipes, a failing inducer motor, or cracked vacuum tubing. If the switch fails to close under the specified 0.35/0.60" WC load, it likely requires replacement.
Is this switch compatible with multi-speed inducer blowers?
Yes, the 63W56 is specifically designed to handle the variable static pressure requirements of two-stage combustion systems.
What causes these switches to fail prematurely?
Most failures result from moisture intake in the diaphragm or electrical arcing at the terminals due to high resistance.
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 Lennox 63W56 Pressure Switch is a dual-stage combustion air prover designed for precise draft monitoring in high-efficiency gas furnaces. This SPST normally open switch features dual setpoints of 0.35" WC and 0.60" WC, facilitating the sequenced operation required for two-stage heating cycles. Engineered as a direct OEM replacement part, it ensures the inducer motor maintains proper static pressure before allowing the ignition sequence to proceed. The 63W56 is critical for detecting venting obstructions or inducer failures, providing essential safety interlocking for the control board. For contractors performing Lennox furnace repair, this component offers reliable calibration and terminal alignment for seamless field installation. Its robust diaphragm construction resists fluctuating pressures, ensuring stable performance across high and low fire stages. When diagnosing furnace pressure switch stuck open errors, verify the vacuum tubing and collector box integrity to ensure this switch receives accurate pneumatic signals for consistent circuit closure.
- Dual-Stage Calibration: Pre-set at 0.35" and 0.60" WC for accurate two-stage inducer monitoring.
- OEM Reliability: Direct replacement for several Lennox 80% and 90% AFUE furnace models.
- Enhanced Safety: Standard SPST N/O configuration prevents ignition during insufficient venting conditions.
- Durable Housing: Built to withstand high-temperature environments within the burner cabinet.
How do I troubleshoot a 63W56 pressure switch error code?
Check for blocked vent pipes, a failing inducer motor, or cracked vacuum tubing. If the switch fails to close under the specified 0.35/0.60" WC load, it likely requires replacement.
Is this switch compatible with multi-speed inducer blowers?
Yes, the 63W56 is specifically designed to handle the variable static pressure requirements of two-stage combustion systems.
What causes these switches to fail prematurely?
Most failures result from moisture intake in the diaphragm or electrical arcing at the terminals due to high resistance.
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.
