Error code reference

Lennox Hvac Error Code 106

There is a hardware problem with the air-handler control.

First step from the service manual

Replace the control if the problem prevents operation and is persistent. The alarm/fault is cleared 300 seconds after the fault recovers.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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106 on my Lennox HVAC

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There is a hardware problem with the

From Service Manual 832347, p.39:

1.Replace the control if the problem prevents operation and is persistent. The alarm/fault is cleared 300 seconds after the fault recovers.

2.Inspect the exhaust duct from the unit to the wall cap. A crushed or lint-blocked duct is the most common cause of airflow-related faults.

3.Measure static pressure at the blower housing with the lint screen removed. Expected: ≥ 1.0 in. w.c. in a still-air test.

Part W10861225

Blower wheel and housing

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