What It Means
- Injection EEV coil current too high
Lennox Split & Multi-Split
Lennox Error Code E490
Split & Multi-Split: Heat pump (outdoor)
Causes & actions from Lennox
How it shows
- Outdoor control 7-segment display: E490
Injection operation stopped, heat pump heating can continue. Check injection EEV coil connection to the EEV controller.
Applicable models & manual sources
- SL22KLV
Injection EEV coil current 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.
