Lennox Split & Multi-Split

Lennox Error Code E184

Split & Multi-Split

E184 means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.

What It Means

  • Faulty outdoor liquid line sensor
  • Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.
  • Liquid line temperature is read by the liquid line temperature sensor between Pins 3 and Pin 4 of the 6-pin sensor harness. Nominal Resistance of the sensor is 10K ohms at 77F. The control will display the E184 error code if the sensor reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

Causes & actions from Lennox

Faulty outdoor liquid line sensor

30 models

EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060, EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060, EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060, SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060, SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060, SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060

Air conditioner (outdoor), Heat pump (outdoor)

How it shows
  • Outdoor control 7-segment display: E184

Sensor is open or shorted. Replace the sensor.

Applicable models & manual sources
  • EL18XPV

    Faulty outdoor liquid line sensor

    EL18XPV, EL18XPV-024, EL18XPV-036, EL18XPV-048, EL18XPV-060

    EL18XPV manual, page 78

  • EL19KPV

    Faulty outdoor liquid line sensor

    EL19KPV, EL19KPV-024, EL19KPV-036, EL19KPV-048, EL19KPV-060

    EL19KPV manual, page 80

  • EL21KLV

    Faulty outdoor liquid line sensor

    EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060

    EL21KLV manual, page 91

  • EL21KLV

    Faulty outdoor liquid line sensor

    EL21KLV, EL21KLV-024, EL21KLV-036, EL21KLV-048, EL21KLV-060

    EL21KLV manual, page 46

  • SL22KLV

    Faulty outdoor liquid line sensor

    SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060

    SL22KLV manual, page 85

  • SL25KCV

    Faulty outdoor liquid line sensor

    SL25KCV, SL25KCV-024, SL25KCV-036, SL25KCV-048, SL25KCV-060

    SL25KCV manual, page 70

  • SL28XCV

    Faulty outdoor liquid line sensor

    SL28XCV, SL28XCV-024, SL28XCV-036, SL28XCV-048, SL28XCV-060

    SL28XCV manual, page 64

Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

6 models

EL18XCV, EL18XPV, EL19KPV, EL22KCV, SL25KCV, SL28XCV

Air conditioner (outdoor), Heat pump (outdoor)

How it shows
  • Outdoor control 7-segment display: E184

Liquid line temperature sensor RT36 is between pins 3 and 4 of the 4-pin harness. Nominal resistance is 10K ohms at 77F.

Applicable models & manual sources
  • EL18XCV

    Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

    EL18XCV manual, page 72

  • EL18XPV

    Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

    EL18XPV manual, page 75

  • EL19KPV

    Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

    EL19KPV manual, page 77

  • EL22KCV

    Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

    EL22KCV manual, page 72

  • SL25KCV

    Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

    SL25KCV manual, page 67

  • SL28XCV

    Liquid line temperature sensor RT36 reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

    SL28XCV manual, page 61

Liquid line temperature is read by the liquid line temperature sensor between Pins 3 and Pin 4 of the 6-pin sensor harness. Nominal Resistance of the sensor is 10K ohms at 77F. The control will display the E184 error code if the sensor reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

5 models

SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060

Heat pump (outdoor)

How it shows
  • Outdoor control 7-segment display: E184

This manual entry does not list further causes or actions.

Applicable models & manual sources
  • SL22KLV

    Liquid line temperature is read by the liquid line temperature sensor between Pins 3 and Pin 4 of the 6-pin sensor harness. Nominal Resistance of the sensor is 10K ohms at 77F. The control will display the E184 error code if the sensor reads open or shorted for 24 hours. Cooling operation is allowed with this fault.

    SL22KLV, SL22KLV-024, SL22KLV-036, SL22KLV-048, SL22KLV-060

    SL22KLV manual, page 81

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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