What It Means
- System superheat higher than 40 degrees F for more than 10 minutes. Heat pump heating operation stopped.
Lennox Split & Multi-Split
Lennox Error Code E487
Split & Multi-Split: Heat pump (outdoor)
Causes & actions from Lennox
How it shows
- Outdoor control 7-segment display: E487
System superheat higher than 40 degrees F for more than 10 minutes. Heat pump heating operation stopped.
Other manual wording
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
This manual entry does not list further causes or actions.
Applicable models & manual sources
- SL22KLV
System superheat higher than 40 degrees F for more than 10 minutes. Heat pump heating operation stopped.
SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060
- EL21KLV
System superheat higher than 40 degrees F for more than 10 minutes. Heat pump heating operation stopped.
- EL21KLV
System superheat higher than 40 degrees F for more than 10 minutes. Heat pump heating operation stopped.
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
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?
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