What It Means
- DC bus voltage is too high or to low protection.
Lennox Split & Multi-Split
Lennox Error Code Flash Flash / ON / ON
Split & Multi-Split: Mini-split unit (outdoor)
Causes & actions from Lennox
How it shows
- corp1816 single zone led 018 030: Flash Flash / ON / ON
DC bus voltage is too high or to low protection (Main Control Blue or Yellow LED: Flash Flash; IPM Control Red LED: ON, Green LED: ON)
Applicable models & manual sources
- MPA
DC bus voltage is too high or to low protection.
MPA, MPB, MLA
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.
