LENNOX SLP98V Error Code 31
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92%
CONF
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Combustion Air Pressure Switch
The pressure switch is the primary safety sensor that validates sufficient airflow for combustion. Code 31 indicates the switch failed to close or opened prematurely, which is commonly caused by a mechanical failure of the internal diaphragm or micro-switch contacts. Replacing the switch restores the integrity of the pneumatic safety loop.
SKU: 103233-04
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VIEW ON AMAZON
#CommissionsEarned
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8%
CONF
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Secondary Circuit / Wiring Check
Inspect wiring harness.
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#CommissionsEarned
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DIY Repair Guide
Watch exactly how to replace the Combustion Air Pressure Switch.
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This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
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