3.0 Troubleshooting sensor nodes stay solid red or flashing red continuously

Owned by Tharushi Arachchige
Last updated: Jan 11, 2024 by ahsan Chaudary
3 min read

It would be beneficial to check the LED notification (click here) and what they mean in case you are unsure.

3.1 The sensor node's red dome stays solid red and lights don’t turn on

This suggests that the sensor node is continuously sensing without any break during past 24 hours which causes the Passive Infrared sensor (PIR) to be set as disabled and the red dome stays solid red. Kindly refer to

Click here to continue with the troubleshooting steps.

3.2 The sensor node's red dome continuously flashes

The continuous dimming issue (nodes continuously blinking red) usually happens when multiple relayed dimming messages are sent by an external source such as EnOcean switch. The issues arises when the message is received by multiple nodes at the same time and these dimming messages can continuously circulate between all the nodes within the same zone or those that are wireless linked causing them all to blink red. It is difficult to know the originating point and source because the control commands between nodes over IR are neither reported nor monitored to monitor the source and time. The message can be an input from switches not only from this floor but from other floors within that building (if there are multiple floors) and could also be from a portal or the app because those are the usual inputs for control commands within the system. This is most likely seen in cases where no or little configuration has been done and all nodes are in default zone 1.

Kindly use the troubleshooting options mentioned below;

  • Send a specific dim percentage command to all nodes if sending a relay is possible for all the nodes at the same time. To do this go to light output go to a particular node set a light output percentage and relay. If that is not possible,

  • Power cycle all the nodes such as in a small installation switching through a circuit breaker. This will stop the source from sending any command. In case of multiple floors remember to power off all nodes prior to turning them back on as if the source is from another floor e.g. such that in case of wirelessly linked nodes the message will start to circulate again.

  • Zone the nodes to different zone starting from one section and move to different sections until the continuous dim+ or dim- relay command disappears.

To implement a control if the issue reappears you can use an EnOcean switch with zone pairing mode and configure it such that

  1. A button is configured to implement as scene such as scene 6 i.e. maxlight scene by default. You can either configure other buttons to more scene or leave them unconfigured.

  2. In the select zone option leave it as "Select zone" i.e. do not select any zone from drop down and it will act as any zone which you can take to any zone to implement a control.

When the problem goes away ensure

  • In EnOcean switch pairing menu after selecting node menu go to “Node Interface Page”, click on “Reset to Default” (to unpair all nodes that are already paired with EnOcean)

  • Do the Zoning, assign different zones to each room as per configuration plans

  • Ensure to use switch ID pairing to avoid sending message from an EnOcean switch to multiple nodes (pair one node in each room to its EnOcean switch)

  • Do the wireless linking and zone stitching only where it’s necessary. Avoid linking by enabling both transmission and reception, only enable the relevant feature on relevant nodes to avoid over sharing of message across zones and floors.