What It Means
- Discharge temperature/pressure too high
Lennox Split & Multi-Split
Lennox Error Code E187
Split & Multi-Split: Heat pump (outdoor)
Causes & actions from Lennox
How it shows
- Outdoor control 7-segment display: E187
Discharge temperature or pressure ratio exceeded upper limit. Heat pump heating stopped.
Applicable models & manual sources
- EL21KLV
Discharge temperature/pressure too high
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
- EL21KLV
Discharge temperature/ pressure too high
EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060
- SL22KLV
Discharge temperature/pressure too high
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.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
