What It Means
- Refrigerant Leak detected
- A2L Refrigerant leak alarm
- SL280UHV: A2L Refigerant leak alarm

Ducted Heating
E150 means different things on different Ducted Heating models. Enter your model number to see only your reading, or find your model below.
EL180UHNE(K), EL195UHNEK, EL195UHNEK-01, EL195UHNEK-02, EL196UHEK, ML180UHVK, ML193DFEK, ML196UHEK
Gas furnace (indoor)
This may indicate the presence of a leak at or in the indoor unit coil of the equipment, that will need to be repaired for proper and safe system operation. Additionally, it may indicate that proper refrigerant charge will need to be verified. This fault cannot be cleared while the refrigerant detection system sensor is reporting the presence of a leak
Refrigerant Leak detected
Refrigerant Leak detected
EL195UHNEK, EL195UHNEK-01, EL195UHNEK-02
Refrigerant Leak detected
Refrigerant Leak detected
Refrigerant Leak detected
Refrigerant Leak detected
Refrigerant Leak detected
EL280UHEK, EL280UHEK(X), EL297UHEK, ML296UHVK, ML297UH045XV36BK, ML297UH070XV36BK, ML297UH090XV36CK, ML297UH090XV60CK, ML297UH110XV60CK, ML297UH135XV60DK, ML297UHVK
Gas furnace (indoor)
This may indicate the presence of a leak at or in the indoor unit coil of the equipment, that will need to be repaired for proper and safe operation. Additionally, it may indicate that proper refrigerant charge will need to be verified. The fault cannot be cleared while the refrig- erant detection system sensor is reporting the presence of a leak.
A2L Refrigerant leak alarm
EL280UHEK, EL280UHEK(X)
A2L Refrigerant leak alarm
A2L Refrigerant leak alarm
A2L Refrigerant leak alarm
ML297UH045XV36BK, ML297UH070XV36BK, ML297UH090XV36CK, ML297UH090XV60CK, ML297UH110XV60CK, ML297UH135XV60DK, ML297UHVK
Models: SL280UHV
This manual entry does not list further causes or actions.
A2L Refigerant leak alarm
Continue in ACLogics with guided diagnosis for your equipment and symptoms.