Error Code
high
Unox BAKERLUX SHOP.Pro – Contactors are Chattering
On your BAKERLUX SHOP.Pro unit, chattering contactors typically indicate an unstable power…
Unox BAKERLUX SHOP.Pro - The electrical does not heat
Critical / Stop Operation
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 BAKERLUX SHOP.Pro unit, an oven that does not heat and exhibits a "missing phase" problem indicates a critical electrical supply issue. This typically means one of the three required live electrical conductors is not providing power to the unit. Your immediate action should be to test the oven in a known-good power outlet; if the problem persists, halt operation and contact a qualified electrician or commercial kitchen technician immediately to prevent damage and ensure safety.
Technical Details
Repair Steps:
- Safety First: Before any inspection, ensure the oven is completely disconnected from its power source. Always prioritize safety when dealing with electrical issues.
- Test Alternate Power Source: As per the initial recommendation, plug the UNOX BAKERLUX SHOP.Pro oven into a different, known-good electrical socket or circuit. This helps determine if the issue is with the oven itself or the original power supply. If the oven heats properly in the new socket, the problem lies with the original electrical circuit or outlet.
- Check Circuit Breakers: Locate your electrical panel and inspect the circuit breakers supplying power to the oven. Look for any tripped breakers (usually indicated by a switch in an intermediate position). Reset any tripped breakers firmly to the “OFF” position first, then back to “ON”. If the breaker trips immediately again, do not continue and call an electrician.
- Inspect Power Cord and Plug: Visually inspect the oven’s power cord and plug for any signs of damage, fraying, burns, or loose connections. A damaged cord can lead to intermittent power supply or a missing phase.
- Verify Incoming Voltage (Qualified Personnel Only): If the problem persists after checking breakers and alternate sockets, a qualified electrician or commercial kitchen technician must use a multimeter to measure the incoming voltage at the outlet and, if accessible, at the oven’s main terminal block. They will confirm if one or more phases are indeed missing or significantly under-voltaged. This is critical for 3-phase units.
- Internal Wiring and Component Inspection (Qualified Personnel Only): If external power is confirmed adequate, the technician will need to inspect the oven’s internal wiring, contactors, and control board for loose connections, burnt wires, or component failures that could mimic a missing phase internally.
- Professional Electrical Service: If the issue is confirmed as a missing phase from the building’s electrical supply, a licensed electrician is required to diagnose and repair the facility’s wiring, transformer, or main panel. Do NOT attempt to use the oven until this is resolved.
Common Questions:
Q: What does “a phase is missing” mean for my UNOX BAKERLUX SHOP.Pro oven?
A: A “missing phase” indicates that your oven, which typically operates on three-phase electrical power, is only receiving power from two (or fewer) of its required live electrical conductors. This prevents heating elements, motors, and control systems from operating correctly, often causing the unit to fail to heat or function at all.
Q: Is it safe to operate my UNOX oven with a missing electrical phase?
A: No, it is highly unsafe and can cause severe damage. Operating a commercial oven with a missing phase can lead to overheating of motors, damage to heating elements, failure of sensitive electronic components, and poses a significant risk of electrical fire or shock. Immediately discontinue use and disconnect power.
Q: Who should I contact to fix a missing phase problem?
A: For a missing phase issue, you should immediately contact a licensed commercial electrician or a certified commercial kitchen technician with expertise in three-phase electrical systems. They possess the necessary diagnostic tools and safety training to accurately identify and safely resolve power supply problems at your facility or within the appliance.
When to call a technician
For this error, we recommend calling a certified technician. Do not continue operation or attempt repair yourself.
- Equipment shows a critical or stop-operation fault.
- You smell gas, burning, or see smoke or sparks.
- Error returns after following the steps above.
- You are not trained to work on this equipment.
- Warranty or safety could be affected by DIY repair.