Sensor Troubleshooting

This guide will help you identify and resolve common issues with your Stat Temp sensors. These include power issues, communication delays, and error messages such as "No Sensors Attached" and "Reading Sensors." Follow the appropriate steps below based on the issue you're seeing.

Sensor Not Powering On (No LED Light)

Silicone sensors include a built-in white LED that should glow when the sensor is receiving power and functioning correctly. If the LED is not visible or your monitor displays “No Sensors Attached,” the sensor is either not powered or not being detected by the monitor.

Troubleshooting Steps:

1. Check Physical Connections
   • Unplug the sensor cable from both the sensor and the monitor.
   • Firmly reinsert both ends until they click into place.
   • Wait 5–10 seconds and check for the white LED to glow steadily inside the sensor.
2. Inspect the Cable
   • Look for any visible damage, bent pins, or crimping.
   • Slightly adjust the cable while it's connected — if the monitor briefly detects the sensor, there may be a loose internal wire or poor connection.
3. Swap Components
   • Try using a different cable, a different sensor, or a different port on the monitor.
   • If a known working sensor powers on and is detected, the original sensor or cable may be faulty or expired.
4. Power Cycle the Monitor
   • Hold the power button until the device beeps.
   • Press the power button again to restart and reinitialize sensor detection.

"Reading Sensors"

This message typically appears while the monitor is connecting to WiFi and initializing sensor detection.

Troubleshooting Steps:

1. Give it a minute - It's normal for this message to appear for up to 1–2 minutes after startup to fully connect to the network.
2. Restart the monitor - Hold the power button to shut down, then power it back on.
3. Check WiFi status - If not connected, ensure your network is available and password settings haven’t changed.
4. If the message remains after 5 minutes, proceed to the WiFi Troubleshooting guide or perform a WiFi reset.

Reset WiFi

Troubleshoot WiFi

Frequent Missed Check-In Notifications

If you're receiving repeated alerts for missed sensor check-ins, try the following steps to reduce false alarms and improve reliability:

Adjust Notification Delay

To reduce how quickly alerts are triggered, increase the notification delay in the Notification settings.

This delay can be set for up to 3 hours, allowing temporary issues to resolve before the system begins alerting.

Increase Missed Check-In Threshold

You can raise the number of missed check-ins before an alert is triggered. To adjust this setting:

1. Click the three-dot icon next to the sensor (on the Dashboard or Sensor page).
2. Select Edit.
3. Scroll to the Notifications section.
4. Set "Missed check-ins prior to alerting" to a higher number (up to 10).

Check Network Quality

Poor or unstable network connections can delay check-ins. To view network quality for each monitor:

1. Go to the Monitors page.
2. Click the Configure icon (gear) in the upper right.
3. Scroll and select "Network Quality" from the column options.
4. Click Apply.
5. Review the Network Quality column for any monitors marked "Poor" or "Unstable."

Modify Sensor Read Time

Short reading intervals (e.g., every 15 minutes) make the system more sensitive to brief disruptions. Increasing the read interval can help minimize unnecessary alerts. To adjust:

1. Click the three-dot icon next to the sensor.
2. Select Edit.
3. Scroll to the Environment Details section.
4. Set the Normal Logging Frequency to a longer interval (e.g., 30 minutes).

Inaccurate or Fluctuating Readings

If a sensor shows inconsistent or unlikely temperature or humidity readings:

Position the Sensor Properly:

The CDC recommends placing the sensor in the back middle of the unit. If that area contains fans or vents, reposition the sensor to a lower shelf to avoid air flow interference.

Verify Calibration:

Stat Temp sensors are NIST-certified and should remain accurate within their certified lifespan. Replace any sensors past their expiration date.

Verify Refrigerator Load:

Avoid overloading the unit. Too many items can block airflow, causing uneven cooling and fluctuating sensor readings.

Modify Read Times:

To get a clearer view of environmental changes, increase how often the sensor takes readings:

1. Click the three-dot icon next to the sensor (on the Dashboard or Sensor page).
2. Select Edit.
3. Scroll to the Environment Details section.
4. Change the Normal Logging Frequency to every 15 minutes.

If your sensor is already set to 15 minutes and more frequent readings are needed, email stattemp@gohcl.com to request a 5-minute interval.

For more information regarding Temperature Cycles in Refrigerators, click here.

Still Having Trouble?

If none of the steps above resolve your issue:

• Try a full sensor swap test (new monitor, new cable, new sensor).
• Reach out to Stat Temp Support with the monitor serial number and sensor ID.
• Take a photo of the sensor, monitor screen, and cable connections if possible—this helps us troubleshoot faster.

Reach out directly by emailing StatTemp@gohcl.com

Sensor Troubleshooting Table