Thermocycler Error Codes

This table lists Thermocycler error codes. These codes are also used by other Opentrons modules. Descriptions are based on literal firmware output, edited for brevity and clarity.

Error code	Description
ERR002	The module's internal queue is full. This can happen when the module receives too many commands too quickly.
ERR003	Indicates an unhandled G-code. This means the G-code is unknown or misspelled.
ERR004	The module's G-code cache is full. This can happen when the module receives too many G-codes too quickly.
ERR005	This is a bad message acknowledgement. It's a type of internal error that indicates something sent an acknowledgement for a G-code that was already acknowledged.
ERR201	Indicates the module's heat sink thermistor is disconnected. This can happen when the thermistor on the heat sink reads off-scale high, which indicates a disconnected or broken wire.
ERR202	Indicates the module's heat sink thermistor is shorted. This can happen when the thermistor on the heat sink reads off-scale low, which indicates a short circuit.
ERR203	Indicates a heat sink thermistor overtemp condition. This can happen when the thermistor on the heat sink reaches a temperature over its internal limits.
ERR204	Indicates the front-right thermistor is disconnected. This can happen when the thermistor reads off-scale high, which indicates a disconnected or broken wire.
ERR205	Indicates the front-right thermistor is shorted. This can happen when the thermistor reads off-scale low, which indicates a short circuit.
ERR206	Indicates a front-right thermistor overtemp condition. This can happen when the thermistor reads a temperature over its internal limits.
ERR207	Indicates the front-left thermistor is disconnected. This can happen when the thermistor reads off-scale high, which indicates a disconnected or broken wire.
ERR208	Indicates the front-left thermistor is shorted. This can happen when the thermistor reads off-scale low, which indicates a short circuit.
ERR209	Indicates a front-left thermistor overtemp condition. This can happen when the thermistor reaches a temperature over its internal limits.
ERR210	Indicates the front-center thermistor is disconnected. This can happen when the thermistor reads off-scale high, which indicates a disconnected or broken wire.
ERR211	Indicates the front-center thermistor is shorted. This can happen when the thermistor reads off-scale low, which indicates a short circuit.
ERR212	Indicates a front-center thermistor overtemp condition. This can happen when the thermistor reaches a temperature over its internal limits.
ERR213	Indicates the back-right thermistor is disconnected. This can happen when the thermistor reads off-scale high, indicating a disconnected or broken wire.
ERR214	Indicates the back-right thermistor is shorted. This can happen when the thermistor reads off-scale low, indicating a short circuit.
ERR215	Indicates the back-right thermistor is in an overtemp condition. This can happen when the thermistor reaches a temperature over its internal limits.
ERR216	Indicates the back left thermistor is disconnected. This can happen when the thermistor reads off-scale high, indicating a disconnect or broken wire.
ERR217	Indicates the back-left thermistor is shorted. This can happen when the thermistor reads off-scale low, indicating a short circuit.
ERR218	Indicates a back-left thermistor is in an overtemp condition. This can happen when the thermistor reads a temperature over internal limits.
ERR219	Indicates the back-center thermistor is disconnected. This can happen when the thermistor reads off-scale high, indicating a disconnect or broken wire.
ERR220	Indicates the back-center thermistor is shorted. This can happen when the thermistor reads off-scale low, indicating a short circuit.
ERR221	Indicates the back-center thermistor is in an overtemp condition. This can happen when the thermistor reads a temperature over internal limits.
ERR222	Indicates the lid thermistor is disconnected. This can happen when the thermistor reads off-scale high, indicating a disconnected or broken wire.
ERR223	Indicates the lid thermistor is shorted. This can happen when the thermistor reads off-scale low, indicating a short circuit.
ERR224	Indicates the lid thermistor is in an overtemp condition. This can happen when the thermistor reads a temperature over internal limits.
ERR301	Indicates a module's serial number is invalid.
ERR302	Indicates the hardware abstraction layer (HAL) is busy or timed out. This can happen when the hardware abstraction layer raises an error while writing the EEPROM.
ERR303	Indicates an EEPROM communication error. This can happen when the on-board EEPROM could not be communicated with.
ERR401	Indicates the thermal plate is busy. This can happen when the thermal plate is currently executing a command that cannot be interrupted.
ERR402	Indicates the Peltier drivers could not activate the module's heating/cooling plates.
ERR403	Indicates the module could not control the heat sink fan. This can happen when the heat sink fan driver indicates a problem.
ERR404	Indicates the module's lid heater is executing a command that cannot be interrupted.
ERR405	Indicates the module cannot control its lid heater.
ERR406	Indicates the PID controller is reporting that the set of numbers defining how the thermal control loop should behave are invalid or outside the device's acceptable limits.
ERR407	Indicates an invalid target temperature.
ERR408	Indicates a thermal drift of more than 4 °C. This can happen when the thermistors read values that are different from each other by more than 4 °C.
ERR501	Indicates the lid motor is busy executing a command that cannot be interrupted.
ERR502	Indicates a lid motor fault as reported by the lid's motor driver.
ERR503	Indicates a seal peripheral interface error. This can happen when communication with the seal motor driver fails.
ERR504	Indicates the seal motor is busy executing a command that cannot be interrupted.
ERR505	Indicates the seal motor motor driver reports a fault.
ERR506	Indicates the seal motor driver detected a stall event.
ERR507	Indicates that the lid is closed but must be open.
ERR508	Indicates the seal switch should not be engaged. This can happen when the seal switch is in an unexpected state.
ERR509	Indicates the lid state is not what is expected (e.g., after the lid was closed and the seal was engaged, the lid closed sensor indicates the lid is open).