Display shows temperature but actual cabinet is much warmer or colder

Safety: Unplug before accessing sensors or the control board.

Steps to correct mismatch:

• Confirm correct parts: Verify that any previously replaced NTC sensors are genuine Caple parts specified for your model.
• Check wiring integrity: Ensure sensor wires have not been spliced or extended with unsuitable cable, which can alter readings.
• Compare with reference: Place a calibrated thermometer near the sensor location and compare readings at several temperatures.
• Replace PCB: If correct sensors are installed and wiring is intact but readings remain significantly off, replace the main control PCB, as its analog-to-digital converter or calibration may be faulty.

Tip: Document part numbers and wiring before making changes to avoid introducing calibration errors.