What It Means
- Error on float switch (2nd detection)
Lennox Split & Multi-Split
Lennox Split & Multi-Split Error Code E153
Split & Multi-Split: Mini-split unit (outdoor)
Causes & actions from Lennox
How it shows
- mini outdoor inverter pcb: E153
- Mini-split outdoor main board: E153
Indoor unit Float Switch Open/Short Drain Pump operation Check
Applicable models & manual sources
- 3WPD036S6S-1P
Error on float switch (2nd detection)
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.
