Lennox Split & Multi-Split

Lennox Split & Multi-Split Error Code E202

Split & Multi-Split

E202 means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.

What It Means

  • CBX40UHV: Incorrect air handler model size and capacity selected or wrong motor. Check for proper configuring under Configuring Unit Size Codes.
  • 3WPD036S6S-1P: Communication error between indoor unit and outdoor unit (When there is no response from indoor units after tracking is completed)

Causes & actions from Lennox

Incorrect air handler model size and capacity selected or wrong motor. Check for proper configuring under Configuring Unit Size Codes.

Models: CBX40UHV

Air handler (indoor)

How it shows
  • Single-character display: E202

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • CBX40UHV

    Incorrect air handler model size and capacity selected or wrong motor. Check for proper configuring under Configuring Unit Size Codes.

    CBX40UHV manual, page 21

Communication error between indoor unit and outdoor unit (When there is no response from indoor units after tracking is completed)

Models: 3WPD036S6S-1P

Mini-split unit (outdoor)

How it shows
  • mini outdoor inverter pcb: E202
  • Mini-split outdoor main board: E202

Check electrical connection and setting between indoor unit and outdoor unit

Applicable models & manual sources
  • 3WPD036S6S-1P

    Communication error between indoor unit and outdoor unit (When there is no response from indoor units after tracking is completed)

    3WPD036S6S-1P manual, page 38

Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.

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