Cosori Control Board Timing Circuit Error

Timer counts down too fast or too slow compared to real time.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Faulty oscillator on main control PCB, Firmware glitch, Electrical noise from unstable power source

Safety first: Unplug before internal work.

Step 1 – Confirm symptom: Compare a 10-minute cook cycle to a separate timer. If significantly off, proceed.
Step 2 – Power reset: Unplug for 10 minutes and test again to rule out a temporary glitch.
Step 3 – Stable power: Use a dedicated outlet and avoid long extension cords that may introduce noise.
Step 4 – Replace control board: If the issue persists, the timing circuit or microcontroller on the main control PCB is likely faulty. Replace the board.

Medium 3/5

Main Control PCB

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