Unox CHEFTOP and BAKERTOP MIND.Maps
Combi and bakery ovens. AF alarms put the oven in STOP; WF warnings let it run with fewer functions, and the OK icon clears them.
What it is: Combi oven. Electric and gas CHEFTOP / BAKERTOP MIND.Maps PLUS and ONE ovens.
Unox CHEFTOP and BAKERTOP MIND.Maps error codes
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| AF01 | Fan motor thermal protection | Motor overheated, capacitor or wiring | Check motor, capacitors and harness to the power board. |
| AF02 | Safety thermostat tripped | Overheat | Find the cause, then reset the stat. |
| AF03 | Temperature probe alarm | Probe failed | Check the probes. |
| AF04 | No communication with the power board | Cable or board | Check the cable and boards. |
| AF08 | Fan stopped turning | Speed sensor, motor connection, capacitor, braking elements or power board | Check each in turn. |
| AF13 | Cavity too hot (over 340 °C) | Probe 1, stuck contactor or power board | Check the probe and contactor. |
| AF23 | Gas ignition problem (gas models) | Burner lock-out | Check the gas supply and burner. |
| AF24 | Pollo valve in wrong position | Valve position | Check the valve. |
| AF25 | Trolley missing | Trolley not detected | Fit the trolley. |
| AF26 | Tank missing or safety stat | Tank or stat | Check the tank and stat. |
| AF39 | Cavity ceiling too hot | Overheat | Check heating control. |
| AF41 | Over-temperature alarm | Two cases: above or below 150 °C | Follow the manual chart for the case shown. |
| AF43 | Core probe completely failed | Probe damaged | Replace the core probe. |
| WF01 / WF02 | Cavity temperature probe | Probe fault | Check the probe. |
| WF04 / AF08 | Fan speed error | Fan or drive | Check the fan. |
| WF06 | Power board too hot | Cooling | Check ventilation. |
| WF16 / WF27 / WF36 / WF37 | Short of water, or valve EL1 / EG1 / EG2 | Water off or valve fault | Open the water; check the valves. |
| WF17 | Multipoint probe partly broken | Probe damage | Replace the probe. |
| WF19 | Out of detergent | Detergent empty | Refill. |
| WF20 / WF26 | Rotor valve EG1 / EG2 | Valve fault | Check the valve. |
| WF23 | Blower speed sensor | Tachometer signal lost | Check the blower. |
| WF25 / WF34 / WF35 | Water valve EL2 / combined valve warnings | Valve fault | Check the valves named. |
| WF29 / WF30 / WF31 | Flue gas temperature / probe board / board temperature (gas) | Flue probe or board | Check the flue probe and board. |
| WF33 / AF40 | SD card corrupted (gas) | Card | Replace or reload the card. |
| WF38 | Flame control board warning | Board | Check the board. |
| WF41 | Internet connection failed | Network | Check the connection. |
For licensed technicians only. This equipment can involve mains voltage, high-voltage microwave circuits, gas and refrigerant. Isolate power (and gas) before opening panels, follow the manufacturer's manual and your local licensing rules (for example ARC refrigerant handling and electrical or gas licences). Wrong settings can spoil food or damage equipment. Check every value on the unit in front of you before changing it.
Based on: Unox MIND.Maps service manual (12-2020, EN) and S6 service manual, self-diagnostic messages. Always check the manual for your exact model and software version.
ServiceModes is not affiliated with Unox or any other manufacturer. Written in our own words from the manufacturer's documentation.