Gateway plugged in to service jack but…¶
…no LED at all¶
If the LED is always off, there either is no power or the firmware is wrong, corrupt or has a wrong setting.
- No power on the Service jack -> Plug in a USB power adapter to the Wemos directly. The LED should start blinking now.
- Buck missing or broken -> Plug in a USB power adapter to the Wemos directly. The LED should start blinking now.
- You are shortcutting the bus or the jack. -> unplug the Gateway and wait 2 min before plugging it back in.
- You are drawing too much current from the bus. -> Unplug the Gateway, remove all external components and and wait 2 min before plugging it back in.
- No firmware or firmware update error -> Reload a stable firmware image.
- LED is turned off in the firmware settings -> Log in to the web interface and turn it on.
…LED turns solid but web interface says ‘TX not working’.¶
In this case the EMS bus was found, but the Gateway cannot communicate with the bus.
- Bus wires not connected properly -> Reconnect the EMS bus wires.
- Service jack cable not connected properly -> unplug and replug the cable, reboot the Gateway.
- TX mode is wrong -> For some boilers TX mode 1 is not the correct mode, try mode 2 or 3.
Gateway connects to home network but MQTT is not connected¶
There can be a range of issues.
- Wrong IP -> Set the correct IP of your MQTT broker. This is not always the same IP address as your home automation system.
- Wrong user/password -> Make sure the MQTT authentication is set right or not at all.
- Wrong port -> the MQTT port is 1883 by default. If you need to change this you have to build the firmware yourself.
- MQTT broker is not running -> Make sure the broker is running on the target machine.
- MQTT broker is not installed -> Install a MQTT broker like Mosquitto on the target machine.
MQTT is connected but seemingly no response¶
- You are listening or publishing to the wrong MQTT topics -> verify the topic string.