Error Code
high
Unox OVEN – Control Panel or USB Board Defective – Buzzer Does Not Sound
On your CHEFTOP and BAKERTOP MIND.Maps™ unit, a non-sounding buzzer often indicates…
Unox OVEN - Chloride Content in Inflow Water Too High
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 CHEFTOP and BAKERTOP MIND.Maps™ unit, high chloride content in the inflow water can lead to accelerated corrosion and scale build-up, compromising performance and lifespan. This issue requires immediate attention to protect the boiler and cooking chamber. Address this by assessing water quality and installing a UNOX.Pure-RO system if necessary, alongside regular steel surface maintenance.
Technical Details
Repair Steps:
- Test Inflow Water Quality: Obtain a detailed water analysis report from a certified lab to confirm chloride levels and other parameters. Compare these results against the technical specifications provided in your UNOX CHEFTOP and BAKERTOP MIND.Maps™ manual.
- Install a UNOX.Pure-RO System: If the water quality, specifically chloride content, exceeds UNOX standards (typically >50mg/L or as specified), install a dedicated UNOX.Pure-RO reverse osmosis system. This system is designed to remove harmful minerals and chemicals, ensuring optimal water quality for your combi oven.
- Perform Regular Steel Surface Polishing: Even with improved water quality, regular maintenance is crucial. Polish the stainless steel cooking chamber and other exposed surfaces with a high-quality, food-grade stainless steel polish paste to prevent staining, enhance corrosion resistance, and address any existing surface dullness. Ensure to follow UNOX’s cleaning and maintenance guidelines.
- Monitor System Performance and Water Parameters: After implementing solutions, continuously monitor your oven’s performance and periodically re-test water parameters (e.g., every 3-6 months) to ensure the RO system is functioning effectively and chloride levels remain within acceptable limits.
- Consult UNOX Technical Support: If issues persist or you require assistance with water analysis and system installation, contact authorized UNOX technical support or a certified RestoFixer specialist for professional guidance and service tailored to your specific water conditions.
Common Questions:
Q: What are the risks of high chloride in my UNOX CHEFTOP/BAKERTOP MIND.Maps™ combi oven?
A: High chloride levels can cause pitting corrosion and stress corrosion cracking on stainless steel surfaces, particularly in the cooking chamber and steam generator. This can lead to premature component failure, water leaks, and costly repairs, significantly reducing the lifespan and performance of your UNOX unit.
Q: How do I accurately test the chloride content of my inflow water?
A: The most accurate method is to engage a professional water treatment specialist or a certified laboratory to perform a comprehensive water analysis. While home kits exist, a professional analysis provides precise data crucial for meeting UNOX’s stringent water quality requirements.
Q: Is the UNOX.Pure-RO system mandatory, or can I use another brand’s reverse osmosis unit?
A: UNOX strongly recommends its proprietary UNOX.Pure-RO system as it is specifically designed and tested to meet the exact water quality requirements for their CHEFTOP and BAKERTOP MIND.Maps™ ovens, ensuring compatibility and maintaining warranty coverage. Using non-approved systems may void your warranty and could lead to inadequate protection.
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.