To ensure the correct operation of the cooking function and basic safety items, the system constantly checks the feedback from the relays. The Checking Relay routine reads the available feedback and verifies the congruence between the relay status and the requested status. The outcome of this routine is taken into account during the oven cooking functions.
Error Reporting for Heating Element Irregularities
Active Heating Elements:
- To maintain proper operation and prevent potential hazards, the system will alert you with error codes if any issues arise with the heating elements that are currently in use. This ensures the timely identification and resolution of issues that could impact the cooking process.
Inactive Heating Elements:
- Irregularities in inactive heating elements will not generate error codes unless safety concerns arise. This prevents unnecessary alerts and prioritizes attention to elements crucial for the current operation.
Specific Scenarios:
- No error reporting for inactive elements with detected irregularities: If the system does not activate the load associated with an inactive element and verification of the irregularity is not possible during ongoing cooking, an error code will not be generated.
- Error reporting for mistakenly activated elements: If a load is inadvertently activated for a heating element that is stuck or disconnected, posing a safety risk, the system will report an error to prompt necessary action.
Key Points:
- The system prioritizes error reporting for actively used heating elements to ensure optimal cooking performance and safety.
- It avoids unnecessary error codes for inactive elements unless safety concerns are detected.
- Specific scenarios are addressed to clarify error reporting behavior in different contexts.
Smeg Oven Error Codes:
Error 1: Oven probe error
The oven’s internal temperature probe has detected an abnormal temperature reading.
Causes:
- The probe is not inserted.
- Very high resistance values (order of MΩ, like an open circuit) are recorded.
- There are very low resistance values (such as a short circuit, like 0.1 Ω).
Solutions:
- Check that the oven probe is correctly connected to the power board.
- Replace the oven probe; it may have been damaged, and report abnormal temperatures to the board.
Keyword: OVEN PROBE = OVEN SENSOR
Error 2: High temperature error
The system has detected a temperature exceeding safe operating limits.
Causes:
- Heating elements always powered the oven.
- The oven probe was not inserted correctly.
- The oven probe is damaged.
- A relay on the board is stuck, so the heating element is always activated.
Solutions:
- Wait for the oven to cool down. It may have been a problem with the power mains, so the heating elements have been overcharged.
- Check that the cables are all correctly connected to the heating elements, as shown in the wiring diagram.
- Check that there is no short circuit between the phase or neutral of a heating element and grounding (with a tester, check that there is no continuity between the two power contacts of a heating element and the housing or grounding cable).
- Check the connection of the probe.
- Replace the oven probe.
- Replace the oven board.
- It may be useful to:
- Disconnect the oven and let it cool down.
- Reconnect the appliance.
- Start the fan-assisted static/turbo function
Error 4: Door lock error
The oven’s door lock safety mechanism has been engaged to prevent accidental opening during high-temperature operations.
Triggering Conditions:
- It occurs during “PYRO” or “PYRO ECO” functions when:
- The door lock is not securely engaged
- Oven cavity temperature exceeds 300°C
Safety Precautions:
- Do not attempt to force open the door.
- Turn off the oven and allow it to cool completely.
- Contact a qualified technician for assistance.
Causes:
- The door lock did not activate during a pyrolytic function cycle.
- The door lock is activated during a standard function.
Solutions:
Unplug and wait for the oven to cool down. If the problem persists and never resolves,
- Check if there is nothing stopping the lock lever(s), and check that everything is properly connected according to the wiring diagram.
- Check the wiring: all cables must be connected according to the wiring diagram, correctly crimped to the terminals, and there must be continuity from one end of a cable to the other.
- Heating element always powered that heats the oven:
- Unplug the appliance from the power supply.
- Check that the cables are all correctly connected to the heating elements.
- Check that there is no short circuit between the phase or neutral of a heating element and grounding (with a tester, check that there is no continuity between the two power contacts of a heating element and the housing or grounding cable).
- Replace the door lock.
- A relay on the board is stuck, so the heating element is always active.
- Replace the oven board.
- It may be useful:
- To disconnect the oven
- To let it cool down
- To reconnect the appliance
- To start the fan-assisted static/turbo function
Error 5: Heater assembly error
The oven has detected an issue with the round heating element assembly. This prevents functions that rely on this element from operating correctly.
Causes:
- A malfunction of the heating element.
Solutions:
- Check the correct connection of the cables to the round heating element and to the power board, according to the wiring diagram.
- After this, proceed by checking with a tester the continuity of the round heating element.
- If continuity is not present,
- Check the heating element itself.
- It may be damaged and result in an open circuit.
- If this is the case, replace it.
- If continuity is present:
- It may be a stuck relay on the power board.
- Replace the board.
- If continuity is not present,
- It can also be useful to check the wiring: all cables must be connected according to the wiring diagram, correctly crimped to the Fasten terminals, and there must be continuity from one end of a cable to the other.
- Check the cables indicated by the wiring diagram with a tester. If there is a problem with any of these, replace the wiring.
- For ovens with two round heating elements, the error is detected in different ways:
- Relay Activation for Round Heating Elements in Models with Finder Relay:
- Key Points:
- Auxiliary Relay: These models feature an auxiliary relay, the Finder relay, responsible for powering both round heating elements.
- Error 5 and Relay Replacement: If “ERROR 5” is displayed, it strongly indicates damage to the auxiliary relay, preventing its activation. Replacement of this component is necessary.
- Individual Relays for Heating Elements: The board utilizes two distinct relays to activate the round heating elements: Relay 3 controls one element, while Relay 9 controls the other.
- Error Specificity: The detected error is localized to Relay 3, signifying an issue with that particular relay rather than a general auxiliary relay malfunction.
- Additional Considerations:
- Troubleshooting Steps:
- Isolate Relay 3 for testing and confirmation of its functionality.
- If Relay 3 is indeed faulty, proceed with its replacement.
- Troubleshooting Steps:
- Key Points:
Error 6: Motor fan error
Applies to: Models with internal oven cavity motor-fan
Description:
- The oven has detected an issue with the motor fan responsible for circulating air within the cooking chamber.
- This error arises when a function that requires the motor fan is initiated.
- The function is automatically halted, and the error message is displayed.
Causes:
- A malfunction of the internal motor fan
Solutions:
- Check the correct connection of the cables to the motor-fan and to the power board, according to the wiring diagram.
- Check the wiring: all cables must be connected according to the wiring diagram, correctly crimped to the Fasten terminals, and there must be continuity from one end of a cable to the other.
- Check the cables indicated by the wiring diagram with a tester.
- If there is a problem with any of these, replace the wiring.
- After this, check if:
- Always activated motor-fan: most likely the relay of the power board to activate the motor-fan is stuck.
- Replace the power board.
- Motor-fan that does not start: damaged motor-fan motor.
- Replace the component.
- Always activated motor-fan: most likely the relay of the power board to activate the motor-fan is stuck.
Error 7: Grill heater assembly error
It involves the use of the grill heating element.
Causes:
- A malfunction of the grill heating element.
Solutions:
- Check the correct connection of the cables to the grill heating element and to the power board, according to the wiring diagram.
- After this, proceed by checking with a tester the continuity of the grill heating element.
- If continuity is not present,
- Check the heating element itself. It may be damaged and result in an open circuit.
- If this is the case, replace it.
- Continuity present:
- It may be a stuck relay on the power board.
- Replace the board.
- If continuity is not present,
- It can also be useful to check the wiring: all cables must be connected according to the wiring diagram, correctly crimped to the terminals, and there must be continuity from one end of a cable to the other.
- Check the cables indicated by the wiring diagram with a tester.
- If there is a problem with any of these, replace the wiring.
Error 8: Tangential motor error
Causes:
- A malfunction of the tangential fan motor
Solutions:
- Check the correct connection of the cables to the tangential fan motor and to the power board, according to the wiring diagram.
- It can also be useful to check the wiring: all cables must be connected according to the wiring diagram, correctly crimped to the terminals, and there must be continuity from one end of a cable to the other.
- Check the cables indicated by the wiring diagram with a tester.
- If there is a problem with any of these, replace the wiring. After this, check if:
- Always-activated tangential fan motor: most likely, the relay on the power board to activate the tangential fan motor is stuck.
- Replace the power board.
- Tangential fan motor that does not activate:
- Tangential fan motor damaged.
- Replace the component.
- Always-activated tangential fan motor: most likely, the relay on the power board to activate the tangential fan motor is stuck.
Error 9: Lower heater assembly error
Causes:
- A malfunction of the lower heating element.
Solutions:
- Check the correct connection of the cables to the hearth heating element and to the power board, according to the wiring diagram.
- After this, proceed by checking with a tester the continuity of the lower heating element.
- if continuity is not present.
- Check the heating element itself.
- It may be damaged and result in an open circuit.
- If this is the case, replace it.
- Continuity present:
- It may be a stuck relay on the power board.
- Replace the board.
- if continuity is not present.
- It can also be useful to check the wiring: all cables must be connected according to the wiring diagram, correctly crimped to the terminals, and there must be continuity from one end of a cable to the other.
- Check the cables indicated by the wiring diagram with a tester. If there is a problem with any of these, replace the wiring.
- STEAM MODEL: For the steam model, pay attention: there are two hearth heating elements that “surround” the boiler.
- Check the color of the cable’s alternates (example: blue-red).
Error E: WIFI module error
Wi-Fi module error, present only on models with a WI-FI connection board.
Solutions:
- Check the connection between the power board and the Wi-Fi board according to the wiring diagram.
- “Error E” may appear if there is some problem in starting the system after any inspection or self-diagnosis.
- Restart the system and check that the error does not occur again.
- The error may occur if there is an unrecognized serial number. Reprogram the power board with the correct data from the oven master data.
- If everything is correctly connected and everything is correctly programmed, but the LEDs on the Wi-Fi board do not light up, check the flat cable immediately. Replace it if necessary.
- If the problem persists, replace the Wi-Fi board; it may be damaged.
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