The main control board detected an excessive current draw on the 24V DC assisted tamping motor circuit (exceeding safety threshold, typically >1.8A for >300ms), indicating a mechanical jam in the tamping worm drive/rack assembly or an electrical failure in the motor driver circuit.

⏱ 30-45 Mins Troubleshoot →

CODE ThermoJet Heating Element Failure / Descale Lockout Barista Touch Impress High

ThermoJet Failure Descale Lockout

The main PCB detected an anomalous thermal ramp rate or excessive thermal resistance across the ThermoJet coil, often triggered by severe scale accumulation insulating the internal flow channels or a tripped inline thermal fuse/NTC open circuit, resulting in a persistent firmware descale lockout.

⏱ 30-45 Mins Troubleshoot →

CODE ER05 Barista Touch Impress (BES881) High

ThermoJet Flowmeter Timeout Fix

Error ER05 triggers when the main control board detects insufficient or absent pulse signals from the turbine flowmeter within a designated time window during ThermoJet pre-heating or water delivery, indicating scale blockage, pump air-lock, or flow sensor failure.

⏱ 30-45 Mins Troubleshoot →

CODE 03 Oracle Touch (BES990) High

Steam Boiler NTC Sensor Fault

Error 03 indicates that the control logic detected an open or short circuit on the dedicated steam boiler NTC thermistor, or an out-of-range temperature reading preventing safe heating regulation.

⏱ 30-45 Mins Troubleshoot →

CODE E04 Joule Turbo Sous Vide High

E04 Low Water Sensor Lockout

Error E04 triggers when the capacitive or conductimetric water level sensor detects inadequate immersion or an open-circuit state across probe contacts, forcing an immediate heating element cut-off to prevent dry-fire thermal runaway.

⏱ 20-30 Mins Troubleshoot →

CODE Error 02 Barista Touch Impress High

ThermoJet Heating Element Failure

The main PCB detected an open loop, abnormal current draw, or failure to rise to target operating temperature within the calibrated time window on the ThermoJet rapid-heating block. The system engages safety lockout to prevent thermal runaway or short-circuit damage.

⏱ 30-45 Mins Troubleshoot →

CODE ER03 Barista Touch Impress High

Assisted Tamp Torque Sensor Jam

Error ER03 is triggered when the Impress Puck System's optical or hall-effect torque feedback sensor reports excessive resistance, incomplete lever travel, or an out-of-range voltage reading during the 10kg assisted tamping cycle.

⏱ 30-45 Mins Troubleshoot →

CODE E04 Joule Turbo Sous Vide High

Low Water Dry Run Fault

Error E04 triggers when the liquid level falls below the optical/conductive water level threshold or when scale deposits insulate the probe, tripping firmware dry-run protection to prevent heater burnout.

⏱ 20-30 Mins Troubleshoot →

CODE ER03 Oracle Touch (BES990) Critical

Steam Boiler Thermal Overheat Failure

Error ER03 indicates a steam boiler over-temperature or NTC sensor fault on the Breville Oracle Touch. The main controller halts operation and triggers an audible continuous alarm when the steam boiler NTC temperature probe reports out-of-range resistance (open/short circuit) or the thermal fuse/triac circuit detects uncontrolled thermal runaway.

⏱ 45-60 Mins Troubleshoot →

CODE E05 Joule Oven Air Fryer Pro Critical

Thermal Runaway Element Cutout Fault

Error E05 indicates an uncommanded cavity overtemperature condition or a discrepancy between heating element state and temperature sensor feedback. The control board has tripped safety element cutouts to prevent catastrophic thermal runaway.

⏱ 45-60 Mins Troubleshoot →

CODE E04 Barista Touch Impress Critical

ThermoJet Heating Circuit Failure

The main PCB detected an open loop, out-of-range resistance, or thermal runaway condition on the ThermoJet heating element circuit, triggering a safety interlock shutdown.

⏱ 45-60 Mins Troubleshoot →

CODE ERR03 Oracle Touch (BES990) High

Steam Boiler Heating Timeout

Error ERR03 indicates a steam boiler thermal sensor timeout where the NTC temperature sensor fails to register a target temperature rise within the MCU's programmed window (typically 20 minutes from boot). This failsafe activates to prevent thermal runaway caused by an open thermal fuse, failed heating element, defective NTC thermistor, or triac switching failure on the power PCB.

⏱ 30-45 Mins Troubleshoot →

CODE 04 Barista Touch Impress High

Thermocoil NTC Sensor Open Circuit

Error 04 indicates the main control board detected an open circuit (infinite resistance) across the thermoblock/thermocoil Negative Temperature Coefficient (NTC) thermistor loop. The micro-controller halts heating elements to prevent uncontrolled thermal runaway.

⏱ 30-45 Mins Troubleshoot →