Lennox VRF / VRV

Lennox VRF / VRV Error Code EC

VRF / VRV

EC means different things on different VRF / VRV models. Enter your model number to see only your reading, or find your model below.

What It Means

  • TA (Discharge temperature sensor) malfunction
  • VRHCVOS01-3P: TA (Outlet air temperature sensor) malfunction

Causes & actions from Lennox

TA (Discharge temperature sensor) malfunction

11 models

V22B, V33B, VCFB, VHIB, VMDB, VOSB, VOWA, VRHC, VRHCVOS01-3P, VVCB, VWMB

Reheat coil (indoor)

How it shows
  • Indoor receiver display: EC

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • V22B

    TA (discharge temperature sensor) malfunction

    V22B, V33B, VCFB, VHIB, VMDB, VOSB, VOWA, VVCB, VWMB

    V22B manual, page 11

  • VRHC

    TA (Discharge temperature sensor) malfunction

    VRHC, VRHCVOS01-3P

    VRHC manual, page 17

TA (Outlet air temperature sensor) malfunction

Models: VRHCVOS01-3P

Reheat coil (indoor)

How it shows
  • Indoor receiver display: EC

This manual entry does not list further causes or actions.

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.

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