Fourtech Temperature Controller Manual _best_ May 2026

The measured temperature is below the range of the sensor or the sensor is disconnected. Troubleshooting Tips

If your temperature is "overshooting" (going too high) or "hunting" (oscillating around the target), you need to run . Navigate to the AT parameter in the menu. Change the value from oFF to on . fourtech temperature controller manual

Once the light stops blinking, the controller has saved the optimal PID settings. 6. Common Error Codes The measured temperature is below the range of

Use the and DOWN arrows to reach your desired temperature. Press SET again to confirm. 4. Entering the Parameter Menu fourtech temperature controller manual

Verify the Hy (Hysteresis) or AL settings to ensure the alarm threshold isn't set too close to your working temperature.