What It Means
- Error due to mismatching capacity of indoor and outdoor unit
Lennox Split & Multi-Split
Lennox Error Code E556
Split & Multi-Split: Mini-split unit (outdoor)
Causes & actions from Lennox
How it shows
- mini outdoor inverter pcb: E556
- Mini-split outdoor main board: E556
Check the indoor and outdoor unit capacity
Applicable models & manual sources
- 3WPD036S6S-1P
Error due to mismatching capacity of indoor and outdoor unit
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.
