What It Means
- The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped. Check EEV communication cable and EEV control board power.
- EEV control board fault
Lennox Split & Multi-Split
Lennox Error Code E480
Split & Multi-Split
E480 means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.
Causes & actions from Lennox
The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped. Check EEV communication cable and EEV control board power.
10 models
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060, SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
Heat pump (outdoor)
How it shows
- Outdoor control 7-segment display: E480
The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped.
Other manual wording
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped. Check EEV communication cable and EEV control board power.
Applicable models & manual sources
- EL21KLV
The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped. Check EEV communication cable and EEV control board power.
- EL21KLV
The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped. Check EEV communication cable and EEV control board power.
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
- SL22KLV
The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped. Check EEV communication cable and EEV control board power.
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
EEV control board fault
5 models
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
Heat pump (outdoor)
How it shows
- Outdoor control 7-segment display: E480
The EEV control board has stopped communicating with the outdoor control. Heat pump heating operation stopped. Check EEV communication cable and EEV control board power.
Applicable models & manual sources
- SL22KLV
EEV control board fault
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
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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Continue in ACLogics with guided diagnosis for your equipment and symptoms.
