Lennox Split & Multi-Split

Lennox Split & Multi-Split Error Code EE

Split & Multi-Split

EE 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

  • High water level alarm
  • M22A, M33A, M33B: High water level alarm (cassette units with factory pumps)
  • High water level alarm (ducted and cassette units with factory pumps)

Causes & actions from Lennox

High water level alarm

9 models

3WMB036, M22A, MCFA, MCFB, MFMA, MMDB, MWMA, MWMB, Programmable Wired Controller

Mini-split unit, Mini-split unit (indoor)

How it shows
  • 507550 indoor display: EE
  • 507550 wired controller: EE
  • corp1816 running light: 8 times
  • corp1816 timer light: Off
  • corp1816 wall indoor display: EE

High water level alarm (Running Light: 8 times, Timer Light: Off)

Other manual wording

M22A, MCFA, MCFB, MFMA, MMDB, Programmable Wired Controller

This manual entry does not list further causes or actions.

Applicable models & manual sources

High water level alarm (cassette units with factory pumps)

Models: M22A, M33A, M33B

Mini-split unit (indoor)

How it shows
  • Indoor receiver display: EE

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • M22A

    High water level alarm (cassette units with factory pumps)

    M22A, M33A, M33B

    M22A manual, page 27

High water level alarm (ducted and cassette units with factory pumps)

4 models

M22A, M33A, M33B, MMDA

Mini-split unit (indoor)

How it shows
  • corp1816 cassette ducted floor display: EE
  • corp1816 running light: 8 times
  • corp1816 timer light: Off

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • M22A

    High water level alarm (ducted and cassette units with factory pumps)

    M22A, M33A, M33B, MMDA

    M22A manual, page 10

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 →