What It Means
- Compressor driver module heat sink sensorabnormal
Lennox Split & Multi-Split
Lennox Error Code 46
Split & Multi-Split: Heat pump (outdoor)
Causes & actions from Lennox
How it shows
- el18kslv outdoor fault display: 46
- el18kslv pcb fault led: 46
The Compressor driver module heat sink sensor temperature detectedisnot withintherangeof-25℃to150℃
Applicable models & manual sources
- EL18KSLV
Compressor driver module heat sink sensorabnormal
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.
