Electrolux Professional bntC Error Code
Boiler SSR NTC failure (NTC4)
Source: Electrolux Professional 3/UM_05UMC13_ENG01_SKLOVN_1_5_1_1_EPR_UMG_SkyLineOvens_ENG_20250617.pdf
What does Electrolux Professional bntC mean?
bntC indicates a failure of the SkyLine oven's boiler SSR NTC temperature sensor (NTC4). The oven stops the boiler and blocks cooking and cleaning that need it, but it can continue cooking without the boiler. The manual attributes it to a temperature sensor issue affecting boiler operation.
Symptoms
- bntC displayed
- Boiler stops; cooking and cleaning blocked where boiler is needed
- Cooking possible without boiler functionality
- Boiler SSR temperature (NTC4) not read
Common causes
- Temperature sensor issue (NTC4)
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Diagnostic steps
Continue without the boiler
The oven detected a boiler problem; continue cooking without boiler functionality.
Verify cooking results
Check the cooking results since boiler-based steam is unavailable.
Avoid boiler-dependent cycles
Hold cleaning and cooking cycles that require the boiler until repaired.
Call Service if it persists
If the problem persists, call Service to address the sensor.
When to call a professional
Contact an Electrolux Professional service centre when bntC persists. The NTC4 boiler SSR sensor is an internal temperature sensor on the boiler control path, and diagnosing it requires service access. While the oven can run without the boiler short term, steam cooking and boiler-based cleaning remain unavailable until a technician restores the sensor, so schedule repair.
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Other Electrolux Professional Error Codes
Cavity safety switch triggered (TSC) — cavity over-temperature
Cavity over-temperature (recoverable)
Boiler safety thermostat trips — boiler over-temperature
Boiler over-temperature (recoverable / descale-related)
Boiler thermocouple failure
Boiler water loading timeout
Boiler excessive temperature-rise time (warning)
Boiler level sensor problem
Descale boiler — scale threshold reached (stops cycle)
Descale boiler — scale build-up threshold reached (warning)
Single-point core probe failure
Six-point core probe failure