Ultima Cosa
Control Calibration / Display Error
Display shows incorrect time or temperature compared to settings.
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Possible Causes
Firmware glitch, Faulty encoder or buttons, Control board miscalibration, Electrical noise affecting logic
How to Fix / Troubleshooting
Safety first: Unplug the unit before any disassembly.
- Factory reset: If your Ultima Cosa model supports it, perform a factory reset according to the user manual.
- Power cycle: Unplug for 10–15 minutes to clear temporary glitches.
- Check controls: Verify that buttons or knobs are not sticking or double-activating. Replace the touch panel or encoder if necessary.
- Control board replacement: If incorrect values persist, replace the main control PCB.
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Repair Difficulty
Easy
2/5
Required Part
Main Control PCB
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