Lennox Split & Multi-Split

Lennox Split & Multi-Split Error Code 25

Split & Multi-Split: Heat pump (outdoor)

What It Means

  • Compressor momentary overcurrent -compressor module inverter side

Causes & actions from Lennox

How it shows
  • el18kslv outdoor fault display: 25
  • el18kslv pcb fault led: 25

Compressor momentary overcurrent ， detecte by compressor module inverter side（ ms level）

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

What should you check next?

Continue in ACLogics with guided diagnosis for your equipment and symptoms.

Download on the App Store Get it on Google Play
Scan to install on your phone Free · iPhone & Android
See how guided diagnosis works →