Error Code
medium
Convotherm C4 – Poor Cleaning Results
On your Convotherm 4 C4 floor-standing models unit, poor cleaning results typically…
Convotherm C4 - Error E58.0: Cleaning agent dispensing pump fault
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 E58.0 indicates a fault with the cleaning agent dispensing pump. This typically means the cleaning agent canister is empty or the lines are not primed. Refill the canister with the correct agent and restart the unit, potentially repeating the process to ensure the lines are fully primed.
Technical Details
Repair Steps:
- Verify Cleaning Agent Level: The most common cause for E58.0 is an empty cleaning agent canister. Ensure the canister is full and correctly seated in its compartment. Confirm you are using the appropriate cleaning agent for your Convotherm 4 C4 model.
- Restart and Re-Prime the System: After refilling the canister, restart the cleaning cycle. The system will attempt to prime the lines. You may need to run a cleaning cycle, wait a few minutes, and then restart another cycle to fully clear any airlocks in the suction lines.
- Inspect Suction and Dispensing Lines: Carefully check the transparent cleaning agent lines from the canister to the pump, and from the pump to the spray manifold within the oven cavity. Look for any kinks, crimps, blockages, or air bubbles. Ensure all connections are secure and there are no visible leaks.
- Check for Clogs within Lines or Pump: Over time, cleaning agent residue can solidify and cause blockages. Disconnect the lines (exercising caution with cleaning agents) and inspect for any solidified material or debris within the lines or at the pump’s inlet/outlet ports. Flush if necessary.
- Examine the Dispensing Pump Itself: Visually inspect the cleaning agent dispensing pump for any obvious signs of damage, wear, or leaks. During a cleaning cycle, listen for any unusual noises (grinding, buzzing, or lack of sound) that might indicate a mechanical issue with the pump motor or impeller.
- Verify Electrical Connections to the Pump: Power down the unit completely at the main breaker. Carefully check the electrical connections to the cleaning agent pump. Ensure they are secure, free from corrosion, and that the wiring is intact. A loose or corroded connection can prevent the pump from receiving power and operating correctly.
- Test Pump Functionality (Advanced): For advanced diagnostics, a qualified technician may need to test the voltage supply to the pump during a cleaning cycle and measure the pump’s resistance. If the pump is receiving power but not drawing agent, it may be mechanically faulty. (Note: This step should only be performed by a qualified service technician due to electrical hazards.)
- Replace Faulty Pump: If all other troubleshooting steps fail and the pump is confirmed to be receiving power but not functioning, the cleaning agent dispensing pump is likely faulty and requires replacement. Always use original equipment manufacturer (OEM) replacement parts to ensure compatibility and performance.
Common Questions:
Q: Why does my Convotherm C4 still show E58.0 even after I’ve refilled the cleaning agent canister?
A: If the canister is full, the error often indicates an airlock in the dispensing lines or a blockage preventing the pump from drawing the agent effectively. Try restarting the cleaning cycle multiple times to help prime the lines and clear any air.
Q: Can I continue to use my Convotherm 4 C4 oven for cooking if the E58.0 error is displayed?
A: Yes, typically the E58.0 error, which relates to the cleaning agent pump, does not affect the oven’s primary cooking functions. However, the automatic cleaning cycle will not operate correctly, which can lead to hygiene and maintenance issues over time if not addressed.
Q: How can I prevent the E58.0 error from reoccurring on my Convotherm 4 C4?
A: To prevent recurrence, regularly monitor and promptly refill your cleaning agent canisters, ensuring they never run completely dry. Periodically inspect the dispensing lines for any kinks or blockages, and use only Convotherm-recommended OEM cleaning agents to minimize residue buildup.
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.