What It Means
- CBK48MVT: Communications with the refrigerant detection sensor has been lost or interrupted.
- 3WPD036S6S-1P: Indoor fan error
Lennox Split & Multi-Split
Lennox Split & Multi-Split Error Code E154
Split & Multi-Split
E154 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
Communications with the refrigerant detection sensor has been lost or interrupted.
Models: CBK48MVT
How it shows
- Single-character display: E154
There may be an issue with the wiring harness connecting the sensor of the refrigerant detection system to the indoor unit control board, either with the wiring itself or with the connector (see figure 2). Check the wiring and the connector for damage or improper connectivity. Check the sensor for damage or signs that it must be replaced. This fault clears when communications with the sensor has been reestablished, but latches for a minimum of 5 minutes. Retest of the presence of fault can be effected by pressing the RDS test button on the indoor unit control board.
Applicable models & manual sources
- CBK48MVT
Communications with the refrigerant detection sensor has been lost or interrupted.
Indoor fan error
Models: 3WPD036S6S-1P
Mini-split unit (outdoor)
How it shows
- mini outdoor inverter pcb: E154
- Mini-split outdoor main board: E154
Check on indoor unit indoor Fan operation
Applicable models & manual sources
- 3WPD036S6S-1P
Indoor fan error
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.
