Error Code
medium
Convotherm C4 – Poor Cleaning Results
On your Convotherm 4 C4 floor-standing models unit, poor cleaning results typically…
Convotherm C4 - Error E22.1.x: Core Temperature Probe Issue (Limited Functions)
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 E22.1.x indicates an issue with the core temperature probe, severely limiting Delta-T and probe-guided cooking functions. This prevents precise temperature control required for specific cooking modes. Initially, inspect the probe's connection and check for visible damage to restore functionality.
Technical Details
Repair Steps:
- Safety First: Before any inspection or repair, always disconnect the Convotherm 4 C4 unit from its main power supply to prevent electrical hazards.
- Locate and Inspect Probe Connections: Identify the core temperature probe and its associated wiring, typically located within the oven cavity and connected to a junction box or directly to the control board. Carefully check all connections for looseness, corrosion, or signs of heat damage. Re-seat any loose connectors and clean any corrosion.
- Visual Inspection of the Probe: Examine the core temperature probe itself for any physical damage, such as bends, cuts, frayed insulation on the cable, or a cracked probe tip. If visible damage is present, replacement is likely necessary.
- Test Probe Resistance (with Multimeter): Using a digital multimeter set to resistance (Ohms), measure the resistance of the core temperature probe. Refer to your Convotherm 4 C4 service manual for the expected resistance values at various temperatures (e.g., room temperature, heated). A significant deviation indicates a faulty probe.
- Verify Wiring Continuity: If possible, check the continuity of the wiring harness connecting the probe to the control board. Look for breaks or shorts in the cable.
- Check Control Board Connection: Trace the probe wiring back to the main control PCB. Ensure it is securely plugged into the designated terminal. A loose or corroded connection here can also trigger the error.
- Replace Faulty Components: If the core temperature probe fails testing or shows damage, replace it with a genuine Convotherm core temperature probe. If the wiring harness is damaged, replace the probe wiring harness.
- Clear Error and Test: After completing repairs, restore power to the unit. Navigate to the service menu (refer to your manual for access) and clear the E22.1.x error code. Test all cooking functions, especially Delta-T and probe-guided modes, to ensure proper operation.
- Professional Service: If the error persists after performing these steps, it may indicate a deeper issue with the main control board or other internal components. Contact a certified Convotherm service technician for further diagnosis and repair.
Common Questions:
Q: What does error E22.1.x mean on my Convotherm 4 C4?
A: Error E22.1.x on your Convotherm 4 C4 floor-standing models unit signifies an issue with the core temperature probe system. This error limits or prevents the use of specific cooking functions that rely on precise internal temperature measurements, such as Delta-T cooking and sous-vide.
Q: Can I still cook with error E22.1.x active?
A: Yes, your Convotherm 4 C4 will likely enter an emergency mode, allowing most general cooking functions to operate. However, any programs or modes that require the core temperature probe for accurate regulation, such as Steam Delta-T or Hot air Delta-T, will be unavailable or perform inaccurately.
Q: What is the primary cause of a core temperature probe issue?
A: The most common causes include physical damage to the probe itself (e.g., bending, cuts), wear and tear, loose or corroded electrical connections at the probe or control board, or a faulty probe sensor element that no longer accurately measures temperature.
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.