Error code reference

Lennox Air Conditioner Error Code E416

The outdoor coil sensor has malfunctioned (open, shorted, or out of range); outdoor unit control will not perform defrost.

SourceLennox XC25 Series - Full Service Manual: Installation & Operationp. 31

Lennox codes Lennox air conditioner codes

Diagnostic procedure

The full E416 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check the resistance of the coil sensor and compare to temperature resistance chart. Replace coil sensor if needed.

SourceLennox XC25 Series - Full Service Manual: Installation & Operationp. 31

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

2 manuals in the MyPros+ library document this code for Lennox air conditioner.

Models covered by the manuals that document this code

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The full E416 procedure

Where this code is documented

Models covered by the manuals that document this code

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