Lennox Zone controller

Lennox Error Code 0011

Zone controller

What It Means

  • Multiple jumper selection

Causes & actions from Lennox

How it shows
  • harmony diagnostic led1234: 0011 (led1: off, led2: off, led3: on, led4: on)

Each jumper block on zone control panel is allowed only one jumper, except for the system setup block. Remove extra jumper.

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.

See how guided diagnosis works →