What It Means
- CBX40UHV: Heat call with non-configured or mis-configured electric heat. Check for proper configuring under Configuring Electric Heat Stages.
- CBK48MVT: The air-handler's electric heat is not configured.

Split & Multi-Split
E350 means different things on different Split & Multi-Split models. Enter your model number to see only your reading, or find your model below.
Models: CBX40UHV
Air handler (indoor)
This manual entry does not list further causes or actions.
Heat call with non−configured or mis−configured electric heat. Check for proper configuring under Configuring Electric Heat Stages.
Models: CBK48MVT
Heat call with no configured or mis-configured electric heat. Configure electric heat in the air-handler. The fault clears electrical heat is successfully detected.
The air-handler's electric heat is not configured.
Continue in ACLogics with guided diagnosis for your equipment and symptoms.