What It Means
- R-32 detection sensor replacement notification error
Lennox Split & Multi-Split
Lennox Split & Multi-Split Error Code E699
Split & Multi-Split: Mini-split unit (outdoor)
Causes & actions from Lennox
How it shows
- mini outdoor inverter pcb: E699
- Mini-split outdoor main board: E699
Change R-32 sensor.
Applicable models & manual sources
- 3WPD036S6S-1P
R-32 detection sensor replacement notification error
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.
