This article explains how to tell whether your WTH (Wireless Temperature Hub) is working correctly: how to read the sensor channels, interpret the status light, confirm the app connection, and know when to reach out for support.
Confirming the Hub Is Running
A healthy hub shows these signs:
- The screen is lit and readable
- The status light indicates the hub is powered and running
- Every channel with a connected sensor shows a temperature, updated continuously
- The color of each reading tracks its temperature, from blue when cool to red when hot
If the screen is dark but the hub has power, restart it by holding the physical button for about two seconds. If it stays dark, see Troubleshooting.
Reading the Sensor Channels
The clearest diagnostic on the WTH is the channels themselves. Each channel tells you whether its sensor is detected and reading:
| What You See | What It Means |
|---|---|
| A channel shows a temperature | A sensor is connected on that channel and reading normally |
| A channel is blank | No valid reading is coming from that channel: either nothing is plugged in, or the sensor is not detected |
| A reading looks far too high or too low | The sensor may be misaimed (infrared) or making poor contact (contact probe), or it is genuinely measuring an extreme surface |
Because the hub detects sensors automatically, a channel populates within a few seconds of a working sensor being connected. If you plug in a known-good sensor and its channel stays blank, treat that channel or sensor as the thing to investigate.
Isolating a Sensor Problem
If one channel is not reading while others are, you can narrow down the cause:
- Reseat the sensor: unplug and firmly replug it into its port
- Check placement: for an infrared pod, confirm it is aimed squarely at the surface from a short distance; for a contact probe, confirm the tip is making firm, direct contact
- Swap ports: move the sensor to a different port of the same type. If the reading now appears on the new port, the original port is suspect. If it still does not appear, the sensor is suspect.
- Swap sensors: connect a different sensor of the same type to the original port. If the new sensor reads, the original sensor is the problem.
This quickly tells you whether the issue is a sensor, a port, or placement.
Checking the App Connection
When you are using the LF Audio AuralSync app, the app shows whether it has a live Bluetooth link to the hub:
- Connected: the app is talking to the hub
- Connecting: the app is establishing the link; keep the phone near the hub
- Disconnected: no link. The hub may be out of range, powered off, or connected to another phone.
Remember that the hub's on-screen monitoring does not depend on the app. A Disconnected app does not stop the hub from displaying temperatures; it only affects configuration and firmware updates.
Checking Firmware and Hardware Info
The LF Audio AuralSync app shows the hub's current firmware version. Note this before contacting support or after an update, so you can confirm the version installed. See Firmware Updates.
When to Check Diagnostics
- After installation: confirm every connected sensor is reading and the colors look right
- When a reading is missing or looks wrong: isolate the sensor, port, and placement as described above
- After a firmware update: confirm the hub restarts and resumes monitoring, and check the version in the app
- Before contacting support: note the firmware version and which channels are and are not reading
When to Escalate
Contact LF Audio support by email if, after the checks above:
- A channel stays blank with a known-good sensor that reads fine on another port
- The screen stays dark even though the hub has power and has been restarted
- Firmware updates repeatedly fail on a confirmed 2.4 GHz network with internet access
- A reading is clearly wrong in a way that reseating, re-aiming, and swapping the sensor does not fix
Include your hub's firmware version and a short description of what you have already tried. See Troubleshooting for step-by-step fixes first.