What It Means
- V36C***S4-4P: 3. The evaporator-in sensor is detached.
- VHEC***S4-4P, VHTC***S4-4P: EVA IN sensor of Hydro unit / Hydro unit HT is detached
Lennox VRF / VRV
Lennox Error Code E128
VRF / VRV
E128 means different things on different VRF / VRV models. Enter your model number to see only your reading, or find your model below.
Causes & actions from Lennox
3. The evaporator-in sensor is detached.
Models: V36C***S4-4P
VRF indoor unit (indoor)
How it shows
- vrf 360 fault code: E128
- vrf 360 indoor indicator: ice_blue: off, yellow_green: off, blue: flashing, red: off (blue: flashing, ice_blue: off, red: off, yellow_green: off)
This manual entry does not list further causes or actions.
Applicable models & manual sources
- V36C***S4-4P
3. The evaporator-in sensor is detached.
EVA IN sensor of Hydro unit / Hydro unit HT is detached
Models: VHEC***S4-4P, VHTC***S4-4P
Hydro unit (indoor)
How it shows
- hydro main pcb display: E128
- hydro wired controller display: E128
This manual entry does not list further causes or actions.
Applicable models & manual sources
- VHEC***S4-4P
EVA IN sensor of Hydro unit / Hydro unit HT is detached
VHEC***S4-4P, VHTC***S4-4P
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.
