Lennox Ducted Heating

Lennox Ducted Heating Error Code E150

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.

What It Means

  • Refrigerant Leak detected
  • A2L Refrigerant leak alarm
  • SL280UHV: A2L Refigerant leak alarm

Causes & actions from Lennox

Refrigerant Leak detected

8 models

EL180UHNE(K), EL195UHNEK, EL195UHNEK-01, EL195UHNEK-02, EL196UHEK, ML180UHVK, ML193DFEK, ML196UHEK

Gas furnace (indoor)

How it shows
  • Integrated control 7-segment display: E150

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

Applicable models & manual sources

A2L Refrigerant leak alarm

11 models

EL280UHEK, EL280UHEK(X), EL297UHEK, ML296UHVK, ML297UH045XV36BK, ML297UH070XV36BK, ML297UH090XV36CK, ML297UH090XV60CK, ML297UH110XV60CK, ML297UH135XV60DK, ML297UHVK

Gas furnace (indoor)

How it shows
  • Integrated control 7-segment display: E150

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.

Applicable models & manual sources

A2L Refigerant leak alarm

Models: SL280UHV

How it shows
  • Integrated control 7-segment display: E150

This manual entry does not list further causes or actions.

Applicable models & manual sources
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.

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