What It Means
- Low Voltage - Control circuit <17VAC
- EL18KSLV: DC fan motor abnormal
Lennox Split & Multi-Split
Lennox Split & Multi-Split Error Code 9
Split & Multi-Split
9 means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.
Causes & actions from Lennox
Low Voltage - Control circuit <17VAC
4 models
HSXB15, XC15, XP15, XP19
How it shows
- lsom alert led: 9 (alert: flashing ×9)
1Control circuit transformer is overloaded. 2Low line voltage (contact utility if voltage at disconnect is low).
Other manual wording (1 of 2)
XP19
1Control circuit transformer is overloaded. 2Low line voltage (contact utility if voltage at disconnect is low). (cid:4) Check wiring connections
Other manual wording (2 of 2)
HSXB15
1 Control circuit transformer is overloaded 2 Low line voltage (contact utility if voltage at disconnect is low).
Applicable models & manual sources
- XC15
Low Voltage − Control cir- cuit <17VAC
- XP15
Low Voltage − Control cir- cuit <17VAC
- XP19
Low Voltage − Control circuit <17VAC
- XP19
Low Voltage − Control circuit <17VAC
- HSXB15
Low Voltage Control circuit < 17VAC
DC fan motor abnormal
Models: EL18KSLV
Heat pump (outdoor)
How it shows
- el18kslv outdoor fault display: 9
- el18kslv pcb fault led: 9
DC fan motor blocked or damage or not connected or related circuit broken .
Applicable models & manual sources
- EL18KSLV
DC fan motor abnormal
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.
