The Turkish Sauna Temperature Sensor on a Yacht Is Not Working

The temperature sensor is critical for the correct operation of a Turkish sauna on board a yacht. It regulates steam production and maintains the cabin at the desired temperature. If the sensor in your yacht’s Turkish sauna is not functioning properly, the system may fail to detect the correct temperature, compromising both efficiency and safety of the steam generator. This guide explains the possible causes of temperature sensor failure and provides instructions to identify and resolve the issue effectively.

 

Common Causes of Temperature Sensor Malfunction

When the sensor fails, the steam generator may operate without control or shut down unexpectedly. On yachts—where the environment is highly humid and subject to vibration and salt exposure—sensor failures are relatively common. Typical causes include:

  • Sensor damaged by moisture or corrosion: Steam rooms are extremely humid. If the sensor lacks adequate IP protection, it can deteriorate quickly.
  • Broken cable or oxidized terminals: Yacht vibrations over time can loosen or damage electrical connections.
  • Incorrect sensor positioning: If installed too close to the steam outlet, the sensor reads excessively high temperatures. If too high, it may not accurately detect the cabin temperature.
  • Extension cable too long: Extended, unshielded, or overly long cables can distort temperature readings.
  • Electronic control unit failure: The control unit may read incorrect values or fail to detect the sensor entirely.
  • Sensor covered by silicone, resin, or tiles: During refits, the sensor may be inadvertently sealed behind finishes, preventing accurate readings.
     

Signs of a Temperature Sensor Problem

When the temperature sensor is not working correctly, the sauna cannot properly regulate steam production or cabin temperature. Warning signs include:

  • The sauna does not reach the set temperature.
  • The sauna exceeds the set temperature.
  • The display shows temperature errors (e.g., “SENSOR ERROR”, “TEMP FAIL”).
  • Steam production is irregular.
  • The generator cycles on and off repeatedly (short cycling).

 

How to Check the Temperature Sensor On Board

To diagnose sensor issues, perform the following checks:

  1. Verify that the sensor is installed 63-67 inches (160-170 cm) from the floor, away from the steam outlet.
  2. Ensure the sensor is not covered by silicone or other insulating materials.
  3. Inspect the cable and electrical connections for damage or corrosion.
  4. Measure the sensor’s electrical resistance to confirm it is within the correct range.
  5. Check the control unit for errors or unrealistic readings (e.g., 32°F / 0°C or 248°F / 120°C).

 

Recommended Actions to Restore Proper Sensor Operation

Once the issue is identified, take these corrective actions:

  • Replace the sensor if it shows corrosion, unstable readings, or out-of-range resistance.
  • Restore electrical connections and remove any oxidation.
  • Reinstall the sensor in the correct position, maintaining proper height and distance from the steam outlet.
  • Use only shielded cables if an extension is required.
  • If the control unit still does not read the sensor after replacement, replace the electronic control board.

 

For any technical issues with your yacht’s Turkish sauna, the Centro Italia Yachting team is ready to assist you. You can contact us at the toll-free number 800 931 931 (Italy) or +39 327 612 0605 (from abroad) for immediate and professional support.