Error Code
medium
Convotherm C4 – Poor Cleaning Results
On your Convotherm 4 C4 floor-standing models unit, poor cleaning results typically…
Convotherm C4 - Error E35.0: Limited Functions Due to Cleaning and Crisp&Tasty Issue
Caution / Monitor Closely
Warning: The information provided here is for educational purposes only.
Working with commercial kitchen equipment involves high voltage, gas, and high temperatures.
We strongly recommend contacting a certified service technician for any repairs.
We are not responsible for any damage or injuries resulting from DIY repair attempts.
This information is provided 'as is' without any guarantees of completeness or accuracy.
TLDR
On your Convotherm 4 C4 floor-standing models unit, error E35.0 indicates a limitation where Crisp&Tasty and automatic cleaning functions are unavailable, though general cooking functions remain operational in an emergency mode. This often points to issues with the steam generator's water level system, scale buildup, or faulty components within the humidity control or cleaning circuits. Troubleshooting requires inspection of these specific subsystems to identify and rectify the underlying cause.
Technical Details
Repair Steps:
- Perform a Power Cycle: Turn off the oven, disconnect it from the main power supply for at least 5 minutes, then reconnect and restart. This can often clear temporary faults.
- Verify Water Supply and Quality: Ensure the oven has adequate water pressure and flow. Check the external water filter for blockage and replace if necessary. Hard water can cause scale buildup, which frequently triggers issues affecting steam generation and cleaning efficacy.
- Inspect Steam Generator and Level Electrodes: Access the steam generator and visually inspect for heavy scale deposits on the heating elements and the level electrodes (often B3 and B4). Clean or descale the steam generator thoroughly if scale is present. Ensure the electrodes are clean and properly seated.
- Check Cleaning System Components: Examine the dosing pumps for detergent and rinse aid to ensure they are functioning correctly and not clogged. Inspect the spray nozzles inside the oven cavity for blockages. Verify the drain valve opens and closes properly.
- Evaluate Crisp&Tasty (Humidity Control) System: Investigate the humidity sensor (if applicable) and the functionality of the exhaust damper and circulation fan. Any issues impeding proper moisture extraction or air circulation can affect Crisp&Tasty performance.
- Examine Electrical Connections: With the power off, carefully check all electrical connections and wiring related to the steam generator, cleaning system pumps, sensors, and the main control board for any loose, corroded, or damaged wires.
- Consult the Convotherm 4 C4 Service Manual: Refer to the model-specific service documentation for detailed diagnostic procedures and fault-finding charts related to E35.0, which may provide specific component tests.
- Contact Certified Service Technician: If the error persists after performing these checks, it indicates a more complex electrical or component failure. It is recommended to contact a certified Convotherm service technician for further diagnosis and repair.
Common Questions:
Q: What does error code E35.0 signify on my Convotherm 4 C4?
A: Error E35.0 means your Convotherm 4 C4 floor-standing oven is operating with limited functions, specifically disabling Crisp&Tasty and all automatic cleaning programs, while allowing other cooking functions in emergency mode.
Q: Can I continue to use my Convotherm 4 C4 oven with an E35.0 error?
A: Yes, you can generally continue to use the oven for most cooking tasks as it enters an emergency operation mode. However, the Crisp&Tasty function and any automatic cleaning cycles will be unavailable until the fault is resolved.
Q: What are the most frequent causes for the E35.0 error?
A: The most common causes for E35.0 often relate to scale buildup in the steam generator, issues with the steam generator’s water level electrodes, malfunctions in the cleaning system components (pumps, nozzles, drain), or problems affecting the humidity regulation for Crisp&Tasty.
When to call a technician
Consider calling a certified technician if:
- The error keeps coming back after you've tried the steps above.
- You're not comfortable doing the checks or repairs yourself.
- You notice unusual noise, smell, or behaviour.
- Equipment is under warranty and you want official service.
- You need the unit back in service quickly with minimal downtime.